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• Location: Chantilly
• Type: Contract
• Job #3898

Title: Senior Software Engineer

Location: Chantilly, VA
 

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

As a Senior Software Engineer, you will play a key role in designing, developing, testing, and deploying new features for a critical data transmission application that directly supports the US intelligence community. You will collaborate with a small, highly skilled team to build a robust, secure system that serves as the interface between multiple enterprise networks. This application plays a vital role in transmitting critical intelligence data from field sources to downstream systems. Your contributions will be instrumental as the application evolves into the central hub for all NiFi channels. 

 Responsibilities:

• Design, develop, and implement new features for a data transmission application using Java and Apache NiFi.
• Collaborate with cross-functional engineering teams to integrate the application with multiple enterprise networks, ensuring secure and efficient data flow.
• Contribute to the technical roadmap, advancing the application into the central transmission hub for NiFi channels supporting the US intelligence community.
• Provide mentorship to junior engineers and foster a collaborative, high-performance team environment.
• Ensure high-quality code by adhering to best practices for testing, continuous integration, and code reviews.

Work within Agile development frameworks to iterate and deliver software solutions that meet mission-critical objectives.

Required Qualifications:

• Active TS/SCI security clearance with relevant polygraph.
• Minimum of 12 years of software development experience with a BS/BA degree or at least 10 years of experience with an MS/MA degree.
• At least 4 years of Java or Python experience.
• Demonstrated experience working in a Linux environment.
• Proven expertise in AWS development, including knowledge of S3 buckets and EC2 instances.
• Experience working within Agile development methodologies.

Desired Qualifications:

• Experience with Apache NiFi, especially in data flow management and integration.
• Familiarity with DevSecOps tools such as Git, Jenkins, Puppet, Chef, Ansible, Terraform, etc.
• Experience with AWS SQS and Apache Kafka for message queuing and stream processing.

• Location: Reston, Virginia
• Type: Contract
• Job #3895

Title: Software Engineer
Location: Reston, VA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

• Location: Reston, Virginia
• Type: Contract
• Job #3894

Title: Cloud Solutions Architect SME
Location: Reston, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

• Location: Dahlgren, Virginia
• Type: Contract
• Job #3881

Title: Program Manager (PM)
Location: Dahlgren, VA

*Clearance: *Active Top Secret Clearance needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *
 

• Five (5) years of experience in Contract Management.
• Current PMP Certification
• Familiarity with Navy Network systems design, development, test and evaluation, and training of systems.
• Overseeing both the technical and administrative aspects of Government contract performance.
• Oversight of timeliness and quality of contract service and data deliverables.
• Oversight of contract schedule and cost.
• Experience as a manager of a team of skilled professional, technical, and support personnel involved in Navy Network.
• Demonstrated ability to interface effectively with customers and to deliver quality products on time and within budget.
• Demonstrated ability to plan, design, coordinate, control the progress of project work to meet sponsor objectives, and manage a diverse technical workforce and team consisting of multiple skill sets.

• Location: Tysons, Virginia
• Type: Contract
• Job #3872

Title: Information Systems Security Engineer
Location: Tysons, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Description: The Information Systems Security Engineer supports the client and the team in defining security requirements; advises on, executes and oversees cybersecurity, information assurance (IA) programs, authority to operate (ATO), accreditation and authorization (A&A), User Activity Monitoring (UAM), and system security plans.
Responsibilities:

• Lead for automated security testing efforts leveraging Sponsors enterprise scanning tools
• Responsible for creation and delivery of the Monthly Vulnerability Scans
• Responsible for creation and delivery of the Monthly Privileged Users and Admin report
• Overall Lead for ensuring systems are secure by protecting data and ensuring need to know
• Responsible for working with Tech team on creating any necessary POAM's
• Helps PM with the Contract Security Plan
• Works with PM and Sponsor's Information System Security Manager and INFOSEC Program Council as necessary
• Authors and maintains the programs System Security Plan (SSP) for A&A
• Provides the required security education and plan to sponsor for the program
• Authors and maintains the programs Automated Information Systems (AIS) Plan

Required Skills: 

• 4-7 years’ experience with:
• Application security standards and processes
• Accreditation and Authorization (A&A), including documentation, POAMs, and remediation
• Application and data security requirements for authorities to develop and operation systems (ATD, ATO) such as encryption, role-based security, information assurance, and monitoring/auditing/reporting
• Coordination with engineering team to implement security requirements
• Agile / Scrum

• Location: Chantilly, Virginia
• Type: Contract
• Job #3869

Title: Systems Engineer
Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

The office independently operates a hybrid-cloud mission infrastructure hosting applications and a large data lake, requiring them to manage all infrastructure components and enterprise services like Active Directory. The office requires support specializing in systems engineering and IT project management to guide systems through security accreditation and create essential documentation, including System Security Plans and SOPs. System Engineers will decompose customer requirements into technical solutions, considering architectural impacts, performance, and life cycle costs, while also assisting with project estimation, scheduling, and cost of cloud solutions. The team is responsible for managing the storage, security, and maintenance of data, including patching, upgrades, and monitoring the physical infrastructure.

• Demonstrated experience using forensic software such as Cellebrite, XRY, WinHex, FTK, and Autopsy.
• Demonstrated experience utilizing bash scripting, and bash command lines using Ubuntu and RedHat.
• Demonstrated experience using Storage system installation design and architecture in multi-petabyte environments.
• Demonstrated experience using various instances of Windows – troubleshooting, patching, updates, managing active directing, supporting users and supporting security posture.
• Demonstrated experience installing, maintaining, and configuring Aspera Enterprise Server and Aspera P2P.
• Demonstrated experience maintaining, configuring, administering Mongo Databases.
• Demonstrated experience analyzing existing systems and identifying necessary corrective actions and improvements.
• Demonstrated hands on experience performing server installation, rack or capacity planning, facility and space management, equipment commissioning and decommissioning.
• Demonstrated ability to create and maintain SOP documentation used by technical and non-technical personnel.
• Demonstrated ability to teach digital forensics to large audiences of diverse backgrounds.
• Demonstrated experience creating, maintaining and sharing curated work data.
• Demonstrated experience providing aftercare support, such as integration support for previously installed software and programs.
• Demonstrated experience performing tier 1 thru tier 3 support, including both systems troubleshooting and incident tracking and management.
• Demonstrated hands on experience serving as an Engineering Lead, coordinating, scheduling, deconflicting, and resolving conflicts between IT engineering projects.
• Demonstrated experience using Sponsor’s digital forensic triage application.

• Location: Reston, Virginia
• Type: Contract
• Job #3865

Title: Business Process Analyst
Location: Chantilly, Virginia
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Company Overview:

Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies. Cornerstone’s Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our Team specializes in software development, cloud architecture, systems and network engineering, systems integration, agile management, as well as targeting operations and intelligence analysis. Our support to our mission customers includes cyber network operations, exploitation and defense, signals intelligence, human intelligence, and critical missions and networks.

Business Process Analyst
FSP is a requirement
——

Seeking a Business Process Analyst responsible for creating, documenting, maintaining, developing, and enhancing client-specific business processes and rules databases, also known as the Knowledgebase (KB). This position provides documentation, analysis, and configuration services to reflect updates for regulatory and acquisition policy, customer-specific business processes, and other enhancements to Clent’s solutions.

As a member of an integrated team, the Business Process Analyst also participates in the operation of Client’s Level 1 Help Desk. Overall, this position is responsible for proactively and collaboratively working with project managers, teams, and other organizational groups in a tactical capacity, evaluating internal and external client requirements, and implementing practical solutions promptly.

Job Duties:

• Develop and maintain a fundamental understanding of Federal Acquisition Regulation (FAR), policies, and practices. Maintain currency with FAR policies and practices by attending continuing education courses, participating in research assignments, and self-initiated exploration of related publications
• Develop the skills required to maintain, enhance, and test client agency KBs by gaining a complete understanding of team procedures and toolsets, and through the successful completion of staff training exercises and individual KB assignments (tasks)
• Perform Knowledgebase configurations, logic, implementation, and business process verification/testing
• Analyze Regulatory changes and determine their impact on client products
• Analyze business and user needs, document user requirements, and translate into accurate specifications
• Achieve proficiency in all major client products, including the AAMS software suite, through internal staffing training, self-guided tutorials, and daily exposure to individual product feature sets
• Obtain competency in Level I customer support functions and internal helpdesk procedures through call monitoring and participate in helpdesk activities/functions
• All other duties as assigned

Required Skills:

• 2+ years prior work experience
• Ability to work in a team-oriented environment for a matrixed organization
• Functional knowledge of productivity tools such as Microsoft Office (Word, Excel, Outlook)
• Excellent verbal and written communication skills
• Ability to collaborate with internal and external customers
• Demonstrated analytical capabilities

Desired Skills:

• Knowledge of the Federal Acquisition lifecycle or commercial contracting
• Knowledge of Federal financial systems or commercial accounting
• Experience with Federal government contracting and/or program office organizations
• Experience with logic structures

• Type: Contract
• Job #3859

Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

LCAT requirements:

• 2+ years experience developing forms, workflows, business logic, UI policies, and APIs in ServiceNow
• 2+ years experience using JavaScript and scripting in ServiceNow
• Ability to work on a larger team and under a technical team lead to meet high priority roadmap milestones
• Ability to work closely with a team of functional requirements analysts to clarify requirements, unit test, and demo work  
• Preferred: experience with data migration, creating transform maps, and SQL

—
The ServiceNow developer is responsible for completing ServiceNow tasks in an agile fashion and the following responsibilities:

• Review code work for accuracy and functionality
• Develop ServiceNow tables, record producers, and workflows
• Design and develop Service Portal widgets
• Support data migration efforts using data sources, transform maps, and SQL
• Integration support using REST, SOAP, and/or ServiceNow APIs
• Create and implement design plans
• Analyze code segments regularly
• Keep up to date with industry trends and technology developments
• Flag risks as they arise and brief Senior Leadership with a mitigation strategy for addressing in the needed timeframe
• Facilitate code migrations and releases
• Own and be accountable for flagging stories/features to Tech Lead and Managers
• Unit test stories
• Provide transparent and frequent communication

• Type: Contract
• Job #3847

Data Engineer 
Tysons Corner, VA
Active TS/SCI with Polygraph

Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Job Responsibilities:

As a Sr. Data Engineer, you’ll work with team members to build, deploy, and operate data pipelines and data engineering components to enable data brokering and exchange capabilities across a diverse range of producers and consumers. In this role, you will be responsible for building robust, scalable data pipelines while working collaboratively with cross-functional teams to ensure seamless integration, optimized performance, and efficient delivery of solutions.
 

• Work with team members to operationalize data pipelines and supporting cloud infrastructure
• Collaborate with external data producers and consumers to obtain and provide data through interfaces such as REST APIs and S3
• Provide day-to-day support of deploying Python-native data pipelines and performing data engineering tasks to enable data brokering and exchange capabilities
• Provide Tier 2/3 troubleshooting and incident resolution support for data pipelines in Production

Required Skills:

• 4+ years of proven experience in data engineering, with expertise in designing, developing, and maintaining data ingestion, transformation, and loading pipelines and components
• Demonstrated experience in designing and deploying data pipelines leveraging AWS cloud infrastructure across multiple classification domains (e.g., IL5 to IL6+)
• Experience with Infrastructure-as-Code (IaC) tools, including Terraform, CloudFormation, or Ansible, to automate deployment of data pipeline cloud infrastructure
• Understanding of RMF security principles and hands-on experience implementing security controls for data pipelines in cloud environments
• Strong scripting and programming skills in languages such as Go, Python, and Bash
• Experience with data pipeline tools and technologies such as Nifi, Hadoop, HDFS, and Kafka. Experience implementing data pipelines in the Cloudera Data Platform environment is highly preferred.
• Strong communication skills, with the ability to clearly convey complex technical concepts

Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs.  These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to:  A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.
 

• Location: Chantilly, Virginia
• Type: Contract
• Job #3846

Tech CI Analyst
Chantilly, VA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Company Overview:

Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies. Cornerstone’s Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our Team specializes in software development, cloud architecture, systems and network engineering, systems integration, agile management, as well as targeting operations and intelligence analysis. Our support to our mission customers includes cyber network operations, exploitation and defense, signals intelligence, human intelligence, and critical missions and networks.

Tech CI Analyst
Level: Senior / Expert
Location: Chantilly / Dulles
Required: 
Bachelor's Degree in a technically relevant field (4 years of additional relevant if not)
Active TS/SCI with poly
11 years providing technical all source intelligence and generating leads
5 years working with SIGINT and Cyber Ops
Strong knowledge and understanding of telecommunications
Demonstrated ability to write and dissem products

• Location: Chantilly, Virginia
• Type: Contract
• Job #3837

Software Engineer – Backend Solutions
JOB DESCRIPTION
We’re looking for a Software Engineer who is passionate about building modern, scalable solutions for ingesting and transforming data. This role blends back-end engineering with data pipeline development and is perfect for someone who enjoys designing modular services and bringing structure to complex data environments.

As part of our Agile team, you’ll design and develop software products and services that efficiently ingest, process, and manage data from a variety of sources. You’ll play a key role in building robust, reusable APIs and data pipelines that support critical operational and analytical systems.

KEY RESPONSIBILITIES

• Design and develop scalable backend services and data ingestion solutions.
• Perform data modeling, data mapping, and large-scale file manipulation.
• Collaborate across disciplines in an Agile environment with minimal supervision.
• Drive innovation and process improvement with a hands-on development approach.
• Optimize application for maximum speed and scalability.

QUALIFICATIONS

• Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

REQUIRED KNOWLEDGE/SKILLS

• Knowledge of NodeJS or Python
• Strong understanding of APIs, microservices, and distributed systems.
• Solid experience in building and maintaining ETL workflows and data pipelines.
• Excellent organizational, coordination, interpersonal and team building skills.
• Familiarization with NoSQL datastores.

DESIRED KNOWLEDGE/SKILLS

• NiFi experience
• Hands-on experience working with Elastic and RabbitMQ
• NoSQL experience (i.e. MongoDB)
• Distributed architecture creation
• Cloud based architecture creation or experience

• Location: Tysons Corner, Virginia
• Type: Contract
• Job #3773

Program Security Officer – PSO
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

McLean, VA

Provide comprehensive security assistance and over site to all facets of the program, including operational security/program protection, personnel physical/technical, industrial, and information systems security:

Supporting the Most Exciting and Meaningful Missions in the World

• Location: Chantilly, Virginia
• Type: Contract
• Job #3772

Position Chief Data Engineer
Work Location McLean, VA
Security Clearance TS/SCI with Polygraph

Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Position Description
We are seeking a skilled Data Engineer to support one of our Intelligence customers. The ideal candidate will have a strong background in data engineering and integration, with a focus on normalizing data from diverse sources for advanced analytical methodologies. The Data Engineer will enhance the program's ability to integrate data from varied data sets and capitalize on emerging analytic capabilities developed across the Intelligence Community (IC).

Key Responsibilities:

• Integrate data from a wide range of data sets with varying formatting and tagging standards.
• Normalize and standardize data for incorporation into AI/ML enabled analytical methodologies.
• Collaborate with cross-functional teams and stakeholders to understand data requirements and ensure seamless integration.
• Develop and maintain data pipelines, ETL processes, and data integration workflows.
• Ensure data quality, consistency, and accuracy throughout the integration process.
• Stay current with emerging data engineering technologies and best practices.
• Provide guidance and mentorship to non-technical team members on data engineering methodologies and best practices.
• Create and maintain documentation for data integration processes and workflows.

Qualifications

• Active TS/SCI with CI Polygraph is required.
• Bachelor’s degree in Computer Science, Data Science, Engineering, or a related field. Advanced degree preferred.
• Minimum of 8 years of experience in data engineering or a related field.
• Proven experience in integrating data from diverse sources with varying formats and tagging standards.
• Strong understanding of data normalization, standardization, and ETL processes.
• Experience with data processing platforms such as Hadoop, Spark, and cloud services (AWS, Azure, GCP).
• Proficiency in programming languages such as Python, SQL, and tools like Apache NiFi, Talend, or similar ETL tools.
• Ability to work independently and as part of a team in a fast-paced, dynamic environment.
• Excellent problem-solving skills and the ability to think critically and strategically.
• Strong communication and interpersonal skills to effectively collaborate with stakeholders and present findings.
• Experience working within the Intelligence Community (IC) or other government agencies.
• Active TS/SCI clearance with CI Polygraph is required.

Preferred Qualifications:

• Familiarity with AI/ML enabled analytical methodologies and emerging analytic capabilities.
• Knowledge of national security threats and data exploitation strategies.

• Location: Sunnyvale, California
• Type: Contract
• Job #3742

Job Title: Systems Engineer
Job Location: Sunnyvale, CA
Clearance: Secret (Top Secret preferred)
Schedule: 9/80 Onsite
Salary: $95K – $120K
Certification Requirement: Current Security+ (CompTIA)

Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Overview:
We are seeking an early-career Systems Engineer to join our team supporting secure systems and infrastructure operations in Sunnyvale, CA. This position offers hands-on experience working within a classified environment and is ideal for individuals who have a foundational understanding of systems engineering concepts and are eager to learn and grow under the guidance of experienced professionals. You will support a wide range of technical tasks related to systems, networking, cybersecurity, and mission support infrastructure.

Key Responsibilities:
 

• Assist in the maintenance and troubleshooting of Linux and VxWorks systems
• Provide support for VME-based systems and participate in spacecraft telemetry reviews
• Help configure, deploy, and maintain network switches, routers, firewalls, and threat defense systems under supervision
• Assist with setup and maintenance of TACLANE cryptographic devices, including re-keying and deploying hardware
• Learn and apply Security Technical Implementation Guides (STIGs) and assist in documenting compliance with Risk Management Framework (RMF) processes
• Support basic network architecture changes, update technical documentation, and participate in design discussions
• Configure and troubleshoot Video Teleconferencing (VTC) systems
• Support broader infrastructure projects, including equipment installation/removal, cable routing (fiber/copper), remote deployments, and desktop/user support
• Gain experience with VMware and virtualized environments

Basic Qualifications:
 

• Bachelor’s degree in Systems Engineering, Computer Science, IT, or a related field (Master’s preferred)
• 0–2+ years of relevant engineering experience (internships, labs, or co-ops may qualify)
• Active DoD Secret clearance (or ability to obtain; TS eligibility preferred)
• Current Security+ Certification (CompTIA) or ability to obtain within 60 days
• Foundational understanding of networking, operating systems, and cybersecurity principles
• Willingness to learn, follow detailed instructions, and take on technical tasks under close or general supervision

Preferred Qualifications:
 

• Exposure to embedded or real-time systems such as VxWorks
• Hands-on experience from labs, internships, or school projects involving Linux, networking, or system configuration
• Familiarity with STIGs, RMF, or other cybersecurity compliance frameworks
• Experience working in secure environments or DoD programs (even in support roles)

Work Conditions:
 

• Full-time, onsite role in Sunnyvale, CA
• Standard day shift; occasional extended hours based on project needs
• Work may include physical tasks such as equipment setup and cable installation

Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs.  These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to:  A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.
Job Title: Systems Engineer
Job Location: Sunnyvale, CA
Clearance: Secret (Top Secret preferred)
Schedule: 9/80 Onsite
Salary: $95K – $120K
Certification Requirement: Current Security+ (CompTIA)

Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Overview:
We are seeking an early-career Systems Engineer to join our team supporting secure systems and infrastructure operations in Sunnyvale, CA. This position offers hands-on experience working within a classified environment and is ideal for individuals who have a foundational understanding of systems engineering concepts and are eager to learn and grow under the guidance of experienced professionals. You will support a wide range of technical tasks related to systems, networking, cybersecurity, and mission support infrastructure.

Key Responsibilities:
 

• Assist in the maintenance and troubleshooting of Linux and VxWorks systems
• Provide support for VME-based systems and participate in spacecraft telemetry reviews
• Help configure, deploy, and maintain network switches, routers, firewalls, and threat defense systems under supervision
• Assist with setup and maintenance of TACLANE cryptographic devices, including re-keying and deploying hardware
• Learn and apply Security Technical Implementation Guides (STIGs) and assist in documenting compliance with Risk Management Framework (RMF) processes
• Support basic network architecture changes, update technical documentation, and participate in design discussions
• Configure and troubleshoot Video Teleconferencing (VTC) systems
• Support broader infrastructure projects, including equipment installation/removal, cable routing (fiber/copper), remote deployments, and desktop/user support
• Gain experience with VMware and virtualized environments

Basic Qualifications:
 

• Bachelor’s degree in Systems Engineering, Computer Science, IT, or a related field (Master’s preferred)
• 0–2+ years of relevant engineering experience (internships, labs, or co-ops may qualify)
• Active DoD Secret clearance (or ability to obtain; TS eligibility preferred)
• Current Security+ Certification (CompTIA) or ability to obtain within 60 days
• Foundational understanding of networking, operating systems, and cybersecurity principles
• Willingness to learn, follow detailed instructions, and take on technical tasks under close or general supervision

Preferred Qualifications:
 

• Exposure to embedded or real-time systems such as VxWorks
• Hands-on experience from labs, internships, or school projects involving Linux, networking, or system configuration
• Familiarity with STIGs, RMF, or other cybersecurity compliance frameworks
• Experience working in secure environments or DoD programs (even in support roles)

Work Conditions:
 

• Full-time, onsite role in Sunnyvale, CA
• Standard day shift; occasional extended hours based on project needs
• Work may include physical tasks such as equipment setup and cable installation

Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs.  These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to:  A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.
 

• Location: Chantilly, Virginia
• Type: Contract
• Job #3738

Position Data Strategy Integration Expert
Work Location McLean, VA
Security Clearance TS/SCI with CI Polygraph

We are seeking an experienced Data Strategy Integration Expert to support the Office of the Director of National Intelligence (ODNI). The ideal candidate will have at least 8 years of relevant experience and will be responsible for integrating data strategy across data science, development, and subject matter expert teams. The role requires documentation and implementation of data strategies, ensuring data quality standards, and program data alignment with relevant IC policies and DNI instructions, especially ICD 504 and instruction 95.01. The candidate will monitor progress against established data goals and provide data governance information to senior leadership in various formats.

Key Responsibilities:

• Integrate data strategy across data science, development, and subject matter expert teams.
• Document and implement data strategy, ensuring adherence to data quality standards and alignment with all relevant IC policies and DNI instructions, particularly ICD 504 and instruction 95.01.
• Monitor and track progress against established data goals.
• Prepare and present data governance information in a variety of formats to support senior leadership briefings and reports.
• Ensure proper policies are in place to enforce best data security practices and data access control standards across the program.
• Collaborate with cross-functional teams to ensure data strategies are effectively communicated and implemented.
• Work comfortably in a mission-oriented, fast-paced environment with senior-level customers.
• Provide guidance and mentorship on data governance and data strategy best practices.

Qualifications:

• Bachelor’s degree in Data Science, Computer Science, Information Technology, or a related field. Advanced degree preferred.
• Minimum of 8 years of experience in data strategy integration, data governance, or a related field.
• Proven experience in documenting and implementing data strategies and data quality standards.
• Strong understanding of IC policies and DNI instructions, especially ICD 504 and instruction 95.01.
• Experience preparing and presenting data governance information to senior leadership.
• Knowledge of data security practices and data access control standards.
• Ability to work independently and collaboratively in a mission-oriented, fast-paced environment.
• Excellent problem-solving skills and the ability to think critically and strategically.
• Strong communication and interpersonal skills to effectively collaborate with stakeholders and present findings.
• Active TS/SCI clearance with CI Polygraph is required.
• Experience working within the Intelligence Community (IC) or other government agencies.
• Familiarity with data governance frameworks and best practices.
• Demonstrated ability to work with senior-level customers and stakeholders.
• Experience with data governance tools and technologies.

• Location: Bethesda, Maryland
• Type: Contract
• Job #3736

Title: Mission Engagement Campaign Manager
Location: Bethesda, MD
Compensation Range: $180k approximately
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

We are seeking a strategic and proactive Mission Engagement Campaign Manager to develop engagement strategies; design campaigns to capture analytical frameworks to further the goals of geospatial based missions; conduct both senior-level and mission-user customer engagement and outreach activities; and develop outreach campaigns.  The ideal candidate should be able to bridge the gap between technical capabilities and operational needs.

This position will require both excellent written and oral skills; exhibit strong organizational skills; be an effective communicator and be able to proactively engage with external customers; be able to thrive in a fast-paced environment and pivot between multiple activities while managing tasks efficiently; and conduct effective outreach.

Responsibilities Include:

• Stakeholder Management
• Conduct regular meetings with CI mission uses across IC, DOD, and Law Enforcement.
• Build and maintain relationships with key personnel.
• Seek out similar missions and conduct outreach for assistance on campaigns.
• Document user requirements and pain points.
• Understand existing workflows and processes.
• Campaign Development
• Design CI campaigns for geospatial missions and tools.
• Capture analytical geospatial frameworks and or geospatial analyst frameworks.
• Build use cases, data, and analytical requirements.
• Implementation
• Oversee campaign execution and provide training and support to users.
• Monitor campaign effectiveness.
• Capture requirements based on feedback.
• Coordination
• Facilitate collaboration between different agencies.
• Ensure alignment with organizational objectives.
• Manage stakeholder expectations.
• User Requirement documents and Campaign Plans
• Detailed documentation of user needs and workflow analysis reports.
• Technical requirement specifications and strategic objectives.
• Tactical implementation steps and timeline and milestones.
• Resource allocation plans.
• Training Materials
• Create user guides, standard operating procedures, and best practice documentation.
• Performance Reporting
• Document user adoption statistics, impact assessments, and recommendations for improvement.
• Stakeholder Updates
• Provide regular status reports, executive briefings, and updates to leadership.

Qualifications

• Active TS/SCI with CI Poly is required.
• Bachelors and fifteen (15) years or more of related experience; Masters and thirteen (13) years or more experience; PhD or JD and ten (10) years or more experience.
• 3-5 years’ experience within an IC Agency with a strong understanding of CI operations.
• Project management capabilities.
• Experience in intelligence and Geospatial analysis tools and technology.
• Technical proficiency with data visualization and analytics.
• Knowledge of IC, DOD, and Law Enforcement protocols.
• Experience with tools such as JIRA and Confluence along with the MS suite of tools

• Location: Tysons, Virginia
• Type: Contract
• Job #3716

Title: Software Developer 
Location: Tysons, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

We are seeking a talented and experienced Full Stack Developer to join our dynamic team. The successful candidate will work on-site in an Agile environment and will be responsible for the design, development, testing, and integration of custom software solutions. The role requires experience with modern JavaScript frameworks, microservice-based architectures, AWS, and databases.

Responsibilities:

• Design, develop, and test custom software solutions across multiple system components and applications
• Create implementation or integration approach for applications and components
• Translate system requirements into design specifications
• Provide primary support for testing and installation of application releases into production
• Peer review code
• Participate in regression and 508 compliance testing
• Collaborate with cross-functional teams
• Leverage AWS for cloud-based development
• Manage data using SQL and NoSQL databases

Required Skills:

• Proficiency in modern JavaScript frameworks
• Experience with microservice architecture
• Experience developing in cloud platforms
• Experience with SQL and NoSQL databases
• Experience with RESTful APIs

Preferred Skills/Experience:

• Proficient in React, TypeScript, and React Query
• Proficient in Python
• Experience with AWS including Lambda Functions and DynamoDB
• Experience with 508 compliance
• Familiarity with DevOps practices
• Familiarity with Business Process Models such as Camunda, Flowable, N8n-io
• Agile experience

​​​​​​​

• Location: Tysons, Virginia
• Type: Contract
• Job #3715

Title: Software & Data/AI Engineer 
Location: Tysons, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

​​​​​​​

• Location: Chantilly, Virginia
• Type: Contract
• Job #3714

Title: Data Engineer 
Location: Chantilly, VA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Develop new tools, code, and services to execute data engineering activities involving data of varying types and in varying conditions. Activities include the following tasks: Movement of structure and unstructured data using approved methods. Execute data ingestion activities for storing data in a local or enterprise level location. Develop code to format data that supports exploration. Analyze source data formats and work with Data Scientists and partners to determine the formats and transforms that best meet mission objectives. Develop code and tools to provide one-time and on-going data extraction from various repositories, formatting and transformations into enterprise or standalone data models. Develop new ETL and perform O&M and enhancements on existing ETL code using best practices/standards. Develop and deliver documentation for each project including ETL mappings, code use guide, code location and access instructions.

• Design and optimize Data Pipelines using tools such as Spark, Apache Iceberg, Trino, OpenSearch, EMR cloud services, NiFi and Kubernetes containers
• Ensure the pedigree and provenance of the data is maintained such that the access to data is protected
• Clean and preprocess data to enable access for advanced analytics
• Collaborate with enterprise working groups to advance the state of data standards
• Collaborate with the engineering team, data stewards, and mission partners to aid in getting actionable value out of the data holdings
• Collaborate with software engineers to update, configure, and maintain data services based on the requirements
• Ensure data quality by working with the testing and data quality team to enhance standardization of data conditioning pipelines  
• Experience adapting to various types and formats of data, and working with development teams to integrate new data processing platforms   

Required Skills:

• 10+ years' experience with:
• Data lifecycle engineering
• Development and maintenance of extract, transform and load (ETL) tools and services
• Cloud and on-prem data storage and processing solutions
• Python, SQL, Spark and other data engineering programming
• COTS and open source data engineering tools such as ElasticSearch and NiFi
• Processing data within the Agile Lifecycle  

​​​​​​​

• Location: Mclean, Virginia
• Type: Contract
• Job #3712

Title: Cyber Threat Hunt Analyst
Location: McLean, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Seeking a Cyber Threat Hunt Analyst to join our Cyber Security Operations Center (CSOC) in McLean, VA. The ideal candidate will have a deep understanding of cyber threat hunting, advanced persistent threats (APTs), and the latest tactics, techniques, and procedures (TTPs) used by adversaries. Join us and play a vital role in our nation’s security by helping to enhance our security posture. Responsibilities include but are not limited to: Conduct threat hunting activities to detect advanced threats that evade traditional security solutions and continuously monitor and analyze threat intelligence sources to stay informed about emerging threats. Search for signs of malicious activity in our network and systems. Develop and implement new and innovative threat detection techniques and strategies. Analyze large datasets to identify patterns and anomalies indicative of malicious activities. Collaborate with other CSOC team members and stakeholders to respond to and investigate security incidents. Provide detailed reports and briefings on threat hunting activities and findings to senior management. Develop and maintain threat hunting playbooks, processes, and procedures. Perform in-depth forensic analysis to understand the nature and impact of threats. Participate in the development and refinement of security monitoring and incident response tools and processes.
Minimum Qualifications:

• High School Diploma and 2+ years of experience in cyber threat hunting, incident response, or a related cybersecurity field
• Experience working with network protocols, operating systems, and security architectures
• Experience using threat hunting and forensic tools.

Preferred Qualifications:

• Bachelor's degree in Comp Sci, Cyber or related field
• Relevant certifications such as GCIH, GCFA, GNFA, or equivalent
• Experience with scripting and programming languages such as Python, PowerShell or similar
• Knowledge of machine learning and data analytics techniques as they apply to threat hunting
• Familiarity with cloud security and threat hunting in cloud environments. Understanding of regulatory and compliance requirements related to cybersecurity (e.g., GDPR, HIPAA).
• Clearance Requirement: Must have a current/active TS/SCI w/Polygraph

• Location: Chantilly, Virginia
• Type: Contract
• Job #3688

Title: Software Engineer
Location: Chantilly, VA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Basic Qualifications
• Bachelor’s Degree in Computer Science, Information Systems, Engineering or related STEM degree and a minimum of 9 years related experience.
• Experience with Software Architecture
• Requirements definition – to include iterative derivation of requirements with customer input
• Must have 8+ years development experience with C#
Preferred Qualifications
Candidates with these desired skills will be given preferential consideration:
• 5+ years experience with Java, Android
• 3+ years experience with C, C++, and/or Assembly
• 2+ years experience with PowerShell
• 2+ years experience leading a software development team

• Location: Reston, Virginia
• Type: Contract
• Job #3669

Title: Data Scientist
Location: Reston, Virginia
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
 

Company Overview:

Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies. Cornerstone’s Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our Team specializes in software development, cloud architecture, systems and network engineering, systems integration, agile management, as well as targeting operations and intelligence analysis. Our support to our mission customers includes cyber network operations, exploitation and defense, signals intelligence, human intelligence, and critical missions and networks.

Job Description
Seeking a Data Scientist responsible for working closely with Client’s Customer Engagement project teams to provide the customer with business analysis expertise, dashboard design in a tactical capacity, evaluate internal and external client requirements, and implement effective solutions in a timely manner.
The selected candidate will leverage their analytical skills and expertise in predictive analytics to extract insights from complex datasets and drive data-driven decision-making within our client’s user community. They will collaborate closely with cross-functional teams to develop predictive models, uncover actionable insights, and solve challenging business problems. 
Job Requirements:

• Must have an Active TS/SCI with polygraph ONLY all others need not apply.
• Analyze large, complex datasets to identify trends, patterns, and relationships.
• Conduct exploratory data analysis (EDA) to gain insights and formulate hypotheses.
• Utilize statistical methods and data visualization techniques to communicate findings effectively.
• Ability to consolidate, interpret, and present data in reports/dashboards for Executives, Team Leads, and Individual End Users focused on Acquisition and Financial Information.
• An analytical mindset that allows you to look at the data available and drive into meaningful insights for the end user(s).
• Ability to produce reports and dashboards using Microsoft Power BI, SSRS, and other data tools.
• Experience using SQL to create queries and general knowledge of SQL database structure/relational databases
• Ability to define and document customer business processes and report/dashboard content needs, including business process diagrams, data maps, and data modeling.
• Consult with project team members and customer stakeholders to identify, define, and document business needs and objectives, current reporting capabilities, and challenges related to the business functions, such as those supporting the Federal Acquisition Lifecycle.
• Collaborate with the Client project manager, technical analysts, and customer end-users in the analysis, design, configuration, testing, and maintenance of the Business Intelligence module of Client's AEON Business Process Management Platform to ensure desired operational performance and capabilities.
• Design and conduct experiments to test hypotheses and validate model assumptions.
• Implement A/B testing frameworks to evaluate the impact of changes and interventions.
• Analyze experimental results and provide recommendations for further optimization.
• Track and document changes for functional and business specifications; write detailed, universally understood procedures for testing use cases, knowledge capture, and training purposes.
• Achieve proficiency in all significant Client Reporting/Analytic products, including the AEON software suite, through internal staffing training, self-guided tutorials, and daily exposure to individual product feature sets.
• Provide support for various meetings, demonstrations, and program activities related to Business Intelligence.
• Test reports/dashboard projects following business and functional design following best practices for quality assurance.
• Record and track defects uncovered during test execution and assist in defect resolution (troubleshooting and researching).
• Comprehension of change management processes.
• Other duties as assigned. 

Required Experience.

• 3+ years prior data scientist experience.
• Proven experience in data science, machine learning, or predictive analytics roles.
• Proficiency in programming languages commonly used in data science (e.g., SQL, Python, R, etc.).
• Ability to work in a team-oriented environment for a matrixed organization.
• Strong knowledge and experience with data reporting tools, including Microsoft PowerBI, SSRS, Tableau, etc.
• Strong knowledge of productivity tools like Microsoft Office (Word, Excel, Outlook).
• Experience with Agile and SCRUM processes and methodologies.
• Knowledge of software development life cycle (SDLC) practices, principles, and techniques as they apply to the Agile development process.
• Excellent verbal and written communication skills, proven ability to listen and relate to customers.
• Ability to effectively collaborate with internal and external customers.
• Demonstrated analytical and problem-solving capabilities.
• Proven ability to communicate technical details to a non-technical audience.
• Excellent organizational and time management skills.
• Strong team player who is always willing to help other team members.

Desired Experience:

• Bachelor’s degree or relevant experience.
• Knowledge of SQL Databases and Query Creation
• Knowledge of the Federal Acquisition Lifecycle or commercial contracting.
• Knowledge of Federal financial systems or commercial accounting.
• Ability to develop and deploy predictive models using machine learning algorithms, optimize model performance, and evaluate model accuracy
• Experience with Federal government contracting and/or program office organization's business processes.

• Location: Bethesda, Maryland
• Type: Contract
• Job #3665

Title: Agile Program Manager
Location: Bethesda, MD
Compensation Range: $195k approximately
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

We are seeking a motivated, career and customer-oriented Agile Program Manager to join our team at Bethesda, MD, to provide unparalleled support to our customer and to begin an exciting and rewarding career. We are seeking an experienced Agile program management SME to lead and support our Agile program management transformation journey. The ideal candidate will have a deep understanding of Agile methodology (e.g., Scaled Agile (SAFe)) principles and practices, with a proven track record of implementing Agile methodologies across various teams and projects. The Agile program management SME will work closely with cross-functional teams, stakeholders, and leadership to drive continuous improvement and ensure successful delivery of high-quality products and services.

Key Responsibilities:

• Lead the implementation and transformation of the Scaled Agile Framework (SAFe) within and across multiple organizations.
• Facilitate SAFe ceremonies, such as PI Planning, Scrum of Scrums, System Demos, and Inspect and Adapt as part of Agile Release Train (ART).
• Provide coaching and guidance to Agile teams, Scrum Masters, Product Owners, and leadership on SAFe practices and principles.
• Develop and deliver SAFe training programs to build Agile capabilities across the organization.
• Collaborate with stakeholders to define and prioritize the program and portfolio backlogs (emphasis).
• Assist in the identification and resolution of impediments that impact Agile team performance and delivery.
• Foster a culture of continuous improvement by identifying and implementing process enhancements.
• Track and report on key performance metrics to measure the success and maturity of the Agile transformation (emphasis).
• Stay current with industry trends and best practices in Agile and SAFe methodologies.

Qualifications

• Active TS/SCI with poly is required.
• Bachelor's degree in Computer Science, Information Technology, Management Information Systems, or a related field. Advanced degree preferred.
• 10+ years of related experience with a minimum of five (5) years of experience in implementing Agile methodologies across portfolio, program and project levels.
• SAFe certifications (e.g., SAFe Product Owner (POPM)), Agile Release Train Engineer, SAFe Scrum Master (SSM), SAFe Agilist (SA) and etc.) are required.

• Location: Herndon, Virginia
• Type: Contract
• Job #3656

Title: Network Engineer/Analyst
Location: Herndon, VA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *
 

• Location: Chantilly, Virginia
• Type: Contract
• Job #3655

Title: Cyber Technical Analyst Advisor
Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Tasks:
Cyber intrusion investigations
Review and analysis of cyber security trends
Technical solutioning
Requirements:
Strong understanding of cybersecurity
Familiarity with custom toolsets
Understanding of computer networks and vulnerabilities analysis
Previous experience with AI/ML solutioning
Demonstrated ability to create custom scripts
Creation of data visualizations
Key Skills:
Strong understanding of cybersecurity principles and ability to provide assessments.
Understanding of ML/AI processes and be able to evaluate the efficiency of models
Understanding of networks and various networking architectures
Scripting ability to be able to manipulate and parse through unstructured and structured datasets (Powershell, Python, SQL)
Proficiency in visualizations
Familiarity with sponsor tools
Desired Skills:
Ability to convey technical topics or conclusions to audiences of varying technical literacy
Previous experience analyzing Advanced Persistent Threat (APT) actors
Experience working with AI/ML processes and assessing model efficiency
Education Requirement

• BA/BS (or equivalent experience)

 Experience Requirement

• 8-10 years of experience

​​​​​​​

• Location: Chantilly, Virginia
• Type: Contract
• Job #3612

Title: Graph Database Engineer
Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

JOB DESCRIPTION
We are looking for an experienced Systems Software Engineer to join our team, interested in designing, developing and maintaining essential software systems. The optimal candidate will have demonstrated experience integrating solutions with graph databases, such as JanusGraph. They will also have a strong background in systems software development, experience with 3rd party system integration, expertise in ElasticSearch, and a solid understanding of data modeling concepts. This is a fantastic opportunity to work on a challenging project that requires innovative solutions and collaborative problem-solving.

KEY RESPONSIBILITIES

• Design, develop, test, and deploy scalable and efficient software solutions
• Collaborate with cross-functional teams to identify and prioritize project requirements
• Participate with code reviews and ensure high-quality, modular, and reusable code
• Troubleshoot and debug issues in the application, including performance optimization and error handling
• Stay up-to-date with industry trends and emerging technologies, applying this knowledge to improve our application
• Design and implement data models that meet the needs of the application, ensuring data consistency and integrity

EDUCATION AND EXPERIENCE

• Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.
• 5+ years of related software development experience.

REQUIRED QUALIFICATIONS

• Extensive expertise in Python and NodeJS
• 5+ years of experience in systems software development in NodeJS or Python
• Strong proficiency working with graph databases (for example JANUS Graph) and graph query languages
• Proven experience with 3rd party system integration using APIs, webhooks and other integration methods
• Strong understanding of software design patterns, principles and best practices
• Excellent problem-solving skills, with the ability to work effectively in a team environment
• Basic understanding of data modeling concepts, including entity-relationship, data normalization, and denormalization
• Experience with Git workflows, including feature branching, pull requests and code reviews
• Ability to work effectively in a Linux-based development environment

DESIRED QUALIFICATIONS

• Hands on experience with AWS Lambda, EventBridge and SQS
• Experience with Node.js, Express, MongoDB and Cassandra
• In-depth knowledge of ElasticSearch, including indexing, querying and aggregation
• Knowledge of containerization leveraging Kubernetes
• Familiarity with CI/CD pipelines and automation tools such as Jenkins or CircleCI
• Hands-on experience working with message brokers such as RabbitMQ or AWS SQS

• Location: Reston, Virginia
• Type: Contract
• Job #3560

Title: .NET Developer
Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Position Summary:
The Junior Software Developer will plan, design, develop, and test new software by applying programming techniques and their knowledge of computer systems. The Junior Software Developer implements designs by writing computer programs and updating, maintaining, and repairing existing programs. Work is performed under general guidance.

Core Values:
– Demonstrates the ability to work effectively under pressure with minimal supervision.
– Displays reliability through consistent attendance, follow-through, and task completion.
– Shows teamwork by collaborating with others, maintaining a positive attitude, and communicating openly, consistently, and directly. Listens actively to others.
– Ensures customer satisfaction by delivering exceptional customer service. Takes initiative and acts responsibly. Exhibits flexibility within established parameters.

Skills:
– C# and VB
– ASP.NET Web Forms, MVC
– SQL Database
– HTML, CSS, and JavaScript
– Responsive Web Design
– Web API or SOA experience
– LINQ to SQL
– Entity Framework
– Bootstrap, jQuery
– Azure Cloud Services

Essential Job Functions:
– Plan, install, and maintain large, complex application software; provide technical assistance to system users in accordance with relevant information systems policies, procedures, methods, and techniques.
– Design each component of a complex system, including storage, business logic, and user interface.
– Write programming code for Windows, websites, and databases.
– Design software for various form factors, from large desktops to mobile phones.
– Develop, install, and maintain complex software applications; prepare and update user manuals and system documentation; evaluate new software and recommend changes as necessary.
– Evaluate and assess client needs; suggest project priorities.
– Evaluate and test system upgrades and applications; troubleshoot software-related issues.
– Perform system maintenance activities; uphold system security; grant or revoke system access.
– Respond to user inquiries regarding system operations; offer solutions to problems or refer users to the appropriate staff, including supervisors, employees, and the public.
– Coordinate and conduct user training for relevant software applications; create user training manuals and written standards and procedures; update and maintain user and training manuals as necessary.
– Prepare project cost estimates and justifications for new or enhanced system modifications; evaluate bids and recommend vendor selections.
– Plan, design, and implement application databases; maintain database security and user access; design, create, and manage physical objects, including tables, files, libraries, and indexes to support computer applications using database management systems; monitor database performance and troubleshoot issues.
– Stay current with new trends and innovations in the information technology field.
– Perform related duties and responsibilities as required.
 

• Location: McLean, Virginia
• Type: Contract
• Job #3503

Title: Mission Integration Support
Location: McLean, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Cornerstone Defense is is looking for an experienced general management consultant (at least 7+ years) with AI/ML experience/knowledge to support the office's Chief of Mission Integration. The candidate should be adept at briefing and talking point development, have critical thinking skills, strong communication skills (verbal and written), is detail oriented, experience supporting a front office. 
 

• Location: Chantilly, Virginia
• Type: Contract
• Job #3456

Python Developer: works as part of a team to implement functionality as part of multiple efforts to build data processing applications while taking ownership of architectural design components, technical implementations, and the software development lifecycle. A successful developer will be able to implement functionality to interface with an existing system, as well as writing new functionality to interface with various open-source tools. Knowledge of the software development lifecycle is a must, as the developer will help translate requirements into user stories to be implemented as part of a team. As part of the implementation phase, the developer is expected to include automated tests as part of the CI/CD pipeline to validate the code that is being written. Knowledge of the cloud software deployment process is also key, including familiarity with parallel processing in Python, large data processing using packages such as PySpark, and optimizing Python code for deployment as part of a containerized architecture. 
Role Highlights:

• Development of software components in support of various Python-based data processing applications 
• Work decomposition and development architectural design for components as part of a larger software development system 
• Build with automated testing frameworks to ensure code quality and robust CI/CD deployment processes 
• Experience developing web APIs to interface with cloud applications and databases as part of cloud native software applications 
• Experience working as part of an Agile team to deliver software iteratively 
• Experience integrating Python code into Docker containers as part of a distributed architecture.
• Experience designing software application components independently based on requirements 
• Experience leading discussions with customer stakeholders to align on requirements and technical implementations   

Required Skills:

• Data Processing Python Libraries such as PySpark, Pandas and Numpy 
• Experience with API development in Python using Python libraries such as FastAPI 
• Experience with Unit Testing Frameworks in PyTest and Mocking   

Preferred Skills/Experience:

• Experience with Python ORM tools for database as code such as SQLAlchemy
• Experience deploying containerized Python code using Docker on cloud platforms such as AWS

• Location: Chantilly, Virginia
• Type: Contract
• Job #3454

Participates in development efforts to deliver a complete software solution. This position is for work across the cloud-based software development lifecycle (front end, back end, database, cloud deployment and orchestration, etc.). Design and implement all levels of the solution: data layer, application code, user interface. Design and deliver APIs and integrations with other software systems and databases. Architect for optimal use of enterprise infrastructure (cloud) and security requirements. Experience in the following: Delivering the design and development of software applications. Programming/coding from the data layer through the application layer, through the user interface. Decomposing functional requirements into technical specifications and tasks. Software development frameworks and languages such as JavaScript, TypeScript, React, Python, etc. and data management tools such as SQL and XML. Developing and maintaining unit test scripts. Developing APIs and web services for integration between systems and data sets.    
Key Responsibilities: 

• Work with the Chief Engineer and Technical Leads to translate requirements into user stories to incorporate new functionality into various software applications
• Develop custom data processing functions and applications using data libraries in languages such as Python 
• Interface with numerous front-end frameworks in order to display and interact with data in various formats 
• Containerizing Java and Python microservices and deploying to an AWS cloud environment 
• Develop and/or integrate with Infrastructure as Code DevOps tools to support cloud orchestration of software components 
• Leverage AWS best practices to optimize code for cloud deployment with cost-conscious development and deployment strategies. 
• Experience developing web APIs to interface with cloud applications and databases as part of cloud native software applications
• Experience working as part of an agile team to deliver software iteratively 
• Experience working with open-source Python libraries and packages to speed to software development lifecycle 
• Build automated testing frameworks and security scanning and integrating these tools into the CI/CD pipeline 

Required Skills:

• Design and development of software solutions at one or more layers of the technical stack (data, application, UI)
• Programming languages, particularly Python, Java, Javascript, TypeScript, SQL
• Cloud application and data deployment in AWS (EMR, EKS, ECR, RDS, etc.) 
• DevOps tools and services (Kubernetes, Terraform, Docker, Packer, etc.) 
• Integration with applications and data across a platform (e.g. APIs)
• Developing software within Agile methodologies 

• Location: Chantilly, Virginia
• Type: Contract
• Job #3365

Senior Systems Administrator
Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Responsibilities:

• Be able to provide support onsite, remotely, over the phone, or via email.
• Develop solutions for systems & networks that support mission critical and mission essential infrastructure.
• Analyze existing systems & networks and make proactive recommendations to drive change and create efficiencies.
• Willing to perform minimal break – fix tasks
• This position can be filled at either a level 4 or 5 based on the qualifications below.

Basic Qualifications:

• Active TS/SCI with Polygraph
• 8 years technical experience with a bachelor’s degree in an IT field; 5 years with a Master’s degree, and 3 years with a PhD Degree
• Experience with Windows and/or Linux Server Operating Systems
• Experience with Infrastructure Re-Architecture Support
• Experience with Enterprise Security Assessment Support and A&A accreditation  

Preferred Qualifications:

• CCNA Certification
• Experience with Juniper Firewalls
• Knowledge of with Server Operating System MS 2019
• Knowledge of Power Shell and Basic commands
• Knowledge of MS patching process using WSUS
• Knowledge of Active Directory
• Knowledge of RMF and A&A accreditation process

• Location: Chantilly, Virginia
• Type: Contract
• Job #3363

Systems Administrator – Full Performance (Windows + Linux)
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Responsibilities:

• Be able to provide support onsite, remotely, over the phone, or via email.
• Develop solutions for systems & networks that support mission critical and mission essential infrastructure.
• Analyze existing systems & networks and make proactive recommendations to drive change and create efficiencies.
• Willing to perform minimal break – fix tasks

Requirements:

• 2 years with a bachelor’s degree in an IT field; 6 years' experience in lieu of a degree
• Experience with Windows and/or Linux Server Operating Systems
• Experience with Infrastructure Support

Preferred Qualifications:

• Knowledge of Server Operating System MS 2019
• Knowledge of Power Shell and Basic commands
• Knowledge of MS patching process using WSUS
• Knowledge of Active Directory
• Knowledge of RMF and A&A accreditation process

• Location: Warrenton, Virginia
• Type: Contract
• Job #3351

Mechanical Engineering Specialist, Senior
Location: Warrenton, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Key Role:

Provide engineering review, coordination, and oversight for operations, maintenance, repair, and construction work and oversee and coordinate activities with trade shops, including prioritizing work, reviewing ongoing projects, inspecting installed equipment, and overseeing and coordinating work orders, service orders, and projects. Plan, conduct, and direct projects or major phases of significant projects and coordinate the efforts of engineers and technical support staff. Manage project design or construction efforts, including scheduling, funding, and day-to-day project oversight, manage and evaluate construction contractor performance, integrate, and coordinate projects with field personnel, evaluate, validate, and manage project change requests, and provide official weekly project status reports. Assist the client's contracting officer (CO) and contracting officer's technical representative (COTR) with acquisition planning, execution, and administration, assist the CO and COTR with conducting pre-bid and pre-construction site visits with the COTR, provide invoice supporting information to the COTR for payment, and prepare and monitor project schedules and budgets, provide technical guidance and assistance on contracting and construction issues, direct design efforts, recommend construction documents for approval, and oversee any follow-on maintenance programs. Optimize performance, cost, and schedule by ensuring project objectives are achieved on schedule and at the lowest cost compatible with user requirements. Ensure timely input of all data, comments, and documentation into MAXIMO software project management tool. Ensure the integration of all systems, including information technology, telephone, security, electrical, HVAC, and plumbing.

Basic Qualifications:

• 10+ years of experience as a facilities professional

• 5+ years of experience in an assigned field, including high voltage power, mechanical systems, fire protection, or construction

• Experience with the implementation or execution of design documents

• Experience with reviewing design documentation and identifying deficiencies, inaccuracies, and noncompliance issues with the design intent

• Knowledge of Unified Facilities Criteria (UFCs)

• Ability to evaluate conditions and draft engineering memos that provide sounds engineering guidance consistent with industry best practices and all Federal, State, and Local codes

• Ability to review and perform engineering calculations

• TS/SCI clearance with a polygraph 

• HS diploma or GED 

Additional Qualifications:

• Experience with managing project design or construction efforts, including schedule, funding, and day-to-day project oversight 

• Experience with MAXIMO 

• Experience with new and existing building systems and site surveys and calculations 

• Knowledge of the ASHRAE standards, International Building Code, and pertinent NFPA publications related to mechanical systems 

• Knowledge of the CAD systems, AutoCAD, or REVIT 

• Ability to oversee and coordinate activities with the trade shops, including prioritization of work, review of ongoing projects, and inspection of installed equipment 

• Bachelor’s degree in Mechanical Engineering

• Engineer in Training (EIT) Certification

• Project Management Professional (PMP) Certification  

• Professional Engineer (PE) License 

Mechanical Engineering Specialist, Senior

Key Role:

Provide engineering review, coordination, and oversight for operations, maintenance, repair, and construction work and oversee and coordinate activities with trade shops, including prioritizing work, reviewing ongoing projects, inspecting installed equipment, and overseeing and coordinating work orders, service orders, and projects. Plan, conduct, and direct projects or major phases of significant projects and coordinate the efforts of engineers and technical support staff. Manage project design or construction efforts, including scheduling, funding, and day-to-day project oversight, manage and evaluate construction contractor performance, integrate, and coordinate projects with field personnel, evaluate, validate, and manage project change requests, and provide official weekly project status reports. Assist the client's contracting officer (CO) and contracting officer's technical representative (COTR) with acquisition planning, execution, and administration, assist the CO and COTR with conducting pre-bid and pre-construction site visits with the COTR, provide invoice supporting information to the COTR for payment, and prepare and monitor project schedules and budgets, provide technical guidance and assistance on contracting and construction issues, direct design efforts, recommend construction documents for approval, and oversee any follow-on maintenance programs. Optimize performance, cost, and schedule by ensuring project objectives are achieved on schedule and at the lowest cost compatible with user requirements. Ensure timely input of all data, comments, and documentation into MAXIMO software project management tool. Ensure the integration of all systems, including information technology, telephone, security, electrical, HVAC, and plumbing.

Basic Qualifications:

• 10+ years of experience as a facilities professional

• 5+ years of experience in an assigned field, including high voltage power, mechanical systems, fire protection, or construction

• Experience with the implementation or execution of design documents

• Experience with reviewing design documentation and identifying deficiencies, inaccuracies, and noncompliance issues with the design intent

• Knowledge of Unified Facilities Criteria (UFCs)

• Ability to evaluate conditions and draft engineering memos that provide sounds engineering guidance consistent with industry best practices and all Federal, State, and Local codes

• Ability to review and perform engineering calculations

• TS/SCI clearance with a polygraph 

• HS diploma or GED 

Additional Qualifications:

• Experience with managing project design or construction efforts, including schedule, funding, and day-to-day project oversight 

• Experience with MAXIMO 

• Experience with new and existing building systems and site surveys and calculations 

• Knowledge of the ASHRAE standards, International Building Code, and pertinent NFPA publications related to mechanical systems 

• Knowledge of the CAD systems, AutoCAD, or REVIT 

• Ability to oversee and coordinate activities with the trade shops, including prioritization of work, review of ongoing projects, and inspection of installed equipment 

• Bachelor’s degree in Mechanical Engineering

• Engineer in Training (EIT) Certification

• Project Management Professional (PMP) Certification  

• Professional Engineer (PE) License 

• Location: Warrenton, Virginia
• Type: Contract
• Job #3350

Electrical Engineering Specialist, Senior
Location: Warrenton, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Key Role: 

Provide engineering review, coordination, and oversight for operations, maintenance, repair, and construction work, and oversee and coordinate activities with trade shops, including prioritizing work, reviewing ongoing projects, inspecting installed equipment, and overseeing and coordinating work orders, service orders, and projects. Plan, conduct, and direct projects or major phases of significant projects and coordinate the efforts of engineers and technical support staff. Manage project design or construction efforts, including scheduling, funding, and day-to-day project oversight, manage and evaluate construction contractor performance, integrate and coordinate projects with field personnel, evaluate, validate, and manage project change requests, and provide official weekly project status reports. Assist the client's contracting officer (CO) and contracting officer's technical representative (COTR) with acquisition planning, execution, and administration, assist the CO and COTR with conducting pre-bid and pre-construction site visits with the COTR, provide invoice supporting information to the COTR for payment, prepare and monitor project schedules, provide technical guidance and assistance on contracting and construction issues, direct design efforts, recommend construction documents for approval, and oversee any follow-on maintenance programs. Optimize performance, cost, and schedule by ensuring project objectives are achieved on schedule and at the lowest cost compatible with user requirements. Ensure timely input of all data, comments, and documentation into the MAXIMO software project management tool. Ensure the integration of all systems, including information technology, telephone, security, electrical, HVAC, and plumbing.

Basic Qualifications:   

• 10+ years of experience working in a professional environment
• 5+ years of experience in a specialized, high-assigned field, including high voltage power, mechanical systems, fire protection, or construction
• Experience with the implementation or execution of design documents
• Experience reviewing design documentation and identifying deficiencies, inaccuracies, and noncompliance issues with the design intent
• Knowledge of Unified Facilities Criteria (UFCs)
• Ability to evaluate conditions and draft engineering memos that provide sound engineering guidance consistent with industry best practices and all Federal, State, and Local codes
• Ability to work with minimal oversight
• Ability to review and perform engineering calculations
• TS/SCI clearance with a polygraph 

Additional Qualifications:   

• Experience managing project design or construction efforts, including schedule, funding, and day-to-day project oversight 
• Experience with MAXIMO 
• Experience with new and existing building systems, site surveys, and calculations 
• Knowledge of the Institute of Electrical and Electronics Engineers, International Electrical Testing Association, National Electrical Code, and pertinent NFPA publications related to electrical systems 
• Knowledge of the CAD systems, AutoCAD, or REVIT 
• Ability to oversee and coordinate activities with the trade shops, including prioritization of work, review of ongoing projects, and inspection of installed equipment 
• Bachelor’s degree in Electrical Engineering
• Engineer in Training (EIT) Registration
• Project Management Professional (PMP) Certification  
• Professional Engineer (PE) License 

• Location: Annapolis Junction, Maryland
• Type: Contract
• Job #3347

Title: Sr. Database Admin / Engineer – Exadata:
Location: Annapolis Junction, MD

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Compensation Range: $175k – $195k
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Description:
Sr. Oracle Database Administrator with 10+ years Oracle database administration experience supporting large scale or enterprise level database services.
Required Skills:   

• 10 + years experience administering to, and engineering solutions with Oracle’s database (10 – current).  Extensive experience with database design and modeling; as well as, the collection and interpretation of  customer requirements relevant to database migration, troubleshooting, performance observation and tuning.
• Significant experience with the production and deployment of RAC, RMAN backup & recovery.
• Experience with Oracle Exadata, DB security, Data Guard and / or DB Vault, Oracle Enterprise Manager Cloud Control, label security, and data migration.
• BS in CS or related course of study, or equivalent year’s experience.
• Must be an independent worker with strong communications skills.

 
Qualifications:

• Senior Practice/Technical Director provides guidance and assistance in the analysis, design, implementation and optimization of enterprise wide complex IT architectures based on customer mission objectives and needs. The Senior Technical Director has extensive experience and background in implementing creative and innovative solutions with significant industry-wide impact. Analyzes customer missions and business needs to help ensure Oracle solution meets the customer¿s objectives by combining Oracle best practices, product knowledge, and business acumen. Recommends enhancements to meet highly complex customer needs.

• Location: Bethesda, Maryland
• Type: Contract
• Job #3285

Title: AI Policy Engineer
Location: Bethesda, MD
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Description:

1. Working in a fast-paced, dynamic environment supporting the development of Artificial Intelligence (AI) engineering and capabilities.
2. Serving as a subject matter expert (SME), creating and translating trend analyses, and facilitating stakeholder decision-making, policy, and governance pertaining to current and emerging AI technology.
3. Knowledgeable in the field of AI with strong technical writing skills.
4. Experience with the IC, including experience with non-DoD IC elements.
5. Expertise in one or more or the following subfields:
• Ethics
• Policy
• Law pertaining to AI and emerging technology.

Desired Skills:
1. Experience with Power BI or other BI tools.
2. Experience with Python development.
3. Experience with R, Tableau, or other data visualization/analytical software.

• Location: McLean, Virginia
• Type: Contract
• Job #3283

Front End Software Developer 
McLean, VA 
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Front End Software Developer to support and All Source Data Modeling and Analysis team. Provide Front End Developer support to deliver a prototype application frontend Interface utilizing JavaScript, Angular, and a containerized (Docker and/or Kubernetes is preferred), cloud (AWS) development platform, Elasticsearch integration, and AWS tools. The application supports integrations that tie into other applications that support AI models on the backend.

1. JavaScript 2. Angular 3. AWS platform and development tools 4. Containerization (preferably Docker and/or Kubernetes) 5. ElasticSearch 6. Developing and integrating APIs

1. AI/ML 2. AI modeling with LLMs 3. Educational or practical experience in a STEM (Science, Technology, Engineering or Mathematics) field.

• Location: Chantilly, Virginia
• Type: Contract
• Job #3261

Supports software and data engineering with DevOps tools, culture, and process changes to enable rapid and stable delivery of applications and technologies. Identifies, prototypes, engineers, and deploys emerging software engineering and DevOps tools into existing baseline. Operates and supports a suite of enterprise DevOps services. Establishes, manages, automates, and enhances DevOps pipelines. Defines and promotes enterprise software engineering and DevOps standards, practices, and behaviors. Supports project teams as they integrate into the DevOps environment. May work in hybrid environments (multi-cloud, multi-domain, private/public). Writes and maintains infrastructure and configuration files, DevOps tool configuration scripts, and application run-time configuration scripts. Facilitates technical exchange meetings to identify, collect, and establish coordinated requirements with key stakeholders. 
Key Responsibilities: 

• Work with Chief Engineer and engineers to incorporate DevOps best practices and automation to improve program performance while reducing risk 
• Develops Infrastructure as Code to control all aspects of software environments and version control releases 
• Containerizes Java and Python code optimized for deployment in Kubernetes environment, ensuring high availability and parallel processing 
• Leverages AWS best practices to reduce compute costs while incorporating autoscaling and scheduling of resources according to program demand 
• Collaborate with development teams as part of software development lifecycle to design software while considering the production environment 
• Automate and version control deployments while ensuring a controlled deployment process that enables zero down time
• Incorporates security scanning and other best practices to ensure new deployments comply with industry best practices 
• Works with the ISSE implementing security tools in the build pipeline
• Document work in alignment with Agile Development practices 
• Works well as part of a fast-paced team with a desire to innovate and improve a multi-faceted organization 

Required Skills:

• Minimum of 4-7 years’ demonstrated experience with:
• Kubernetes and Helm Charts 
• Docker and/or Podman Containerization best practices
• AWS Services (EKS, Lambdas, EMR, ECR, VPC, etc.) 
• Terraform Experience 
• Preferred Skills/Experience:
• Terraform and Packer with AWS (AMIs, Environment, Configuration Automation, etc.) 
• Database ORM Tools (Flyway, etc.) 
• CI/CD Pipeline Automation (Git, Jenkins, Automated Testing, etc.) 
• Cloud environment and infrastructure engineering
• Implementing DevOps within a Secure Environment

• Location: McLean, Virginia
• Type: Contract
• Job #3260

Title: Technical Targeting Officer
Location: McLean, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.
 

• This position represents multiple openings. The position level is contingent on applicant specific qualifications and experience. 
  Applicants will be evaluated and placed in a level from 1-5 based off their experience and customer feedback after multiple assessment.

Required Skills:

• Bachelor’s degree and at least 1-20+ years of relevant professional experience.
• Ability to identify and assess the right entities and the right vulnerabilities and technology trends to enable new collection operations.
• Ability to confidently deliver clear and concise briefings.
• Strong analytic, research, and investigative skills combined with ops sense, personal initiative, and some technical expertise.
• Must possess a high-level US Government issued clearance at the time of application.

Desired Skills:

• Experience in Intelligence Operations / Analysis / Support to Field Operations.
• Experience identifying targeting leads through the exploitation of all-source databases and specialized tools.
• Experience using customer databases to monitor field traffic and communicate with field offices.
• Formal training or certification as a Technical Targeter.
• Overseas experience supporting collection operations and information sharing.

• Location: Ft. Meade, Maryland
• Type: Contract
• Job #3230

Title: Senior Red Hat Consultant
Location: Ft. Meade, MD
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Compensation Range: $180k – $200k
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Responsibilities:
Usually responsible for providing a detailed technical design for enterprise solutions.
Is usually the Principal Consultant who analyzes and develops enterprise technology solutions.
Provides the technical direction required to resolve complex issues to ensure the on-time delivery of solutions that meet customer expectations. May need to develop new methods to apply to situations.
Provides advanced technical consulting and advice to proposal efforts, solution design.
Provides consulting advice to customer senior IT leadership and sets strategic direction for customers based on the company's solutions and products.
Works with peers outside immediate organization to define and characterize complex technology or process problems and/or develops new solutions, yet works independently to drive technical problems to a solution.

Education and Experience Required:
12+ years of professional experience and a Master of Arts/Science or equivalent degree in computer science or related area of study; without a Masters degree, three additional years of relevant professional experience (15+ years in total).

Knowledge and Skills:
Demonstrates ability to develop solutions that can be used at multiple customer sites to enhance the availability, performance, maintainability and agility of their enterprise.
Develops reusable solutions and workarounds that are innovative and demonstrate a deep technical knowledge of the affected products, processes, and the customer environment.
Breadth of knowledge covers additional business units, third parties, competitors, and business drivers.
Recognized as an advanced subject matter expert of IT products, applied technologies and processes, combining vendor interoperability knowledge pertaining to complex IT infrastructures. May define interoperability issues between vendors' products and is a recognized expert in one or more technologies across the region. Holds a vendor or industry certification in more than one discipline area. Regularly represents business at industry recognized technical events.
Has performed troubleshooting across a number of significant multi-vendor products.
Has demonstrated innovation and ability to communicate new offerings across multiple business units. Has led a cross functional team in the delivery of multiple solutions across multiple technologies.
Ability to operate and present at all levels, and in public forums, to facilitate business discussions, and controls and leads those discussions.
Ability to relate risks and challenges with other client efforts.
Ability to develop detailed project plans and work breakdown structures. Ability to develop Architecture Specification deliverables that map customer business requirements to technologies.

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *