Cornerstone Defense | Technically Innovative Solutions

Location: Chantilly, Virginia
Type: Contract
Job #3749

Technical Training Instructor:
*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.

Technical Training Instructor
An experienced targeter/targeting instructor to assist with a technical training program for the Customer’s targeting occupation by providing SME support to curriculum development and delivery of course material.  The instructor should have experience as a Technical Targeting Analyst (TTA) or other multi-source targeting experience.  The candidate must have expertise in and the ability to advise others on the use of common TTA tools and methodologies.  The ideal candidate should be familiar with basic instructional and course design principles to help build course curriculum.  The training may include blended and distance learning solutions, along with asynchronous and synchronous approaches to training.  The candidate will also help carry out training evaluations and support creation of a variety of training products such as guides, handbooks, and job aids.

Required Skills:

Active TS/SCI clearance with polygraph.
Bachelor’s degree (4 years of relevant experience may substitute in lieu of degree) and 10+ years of related work experience.
Demonstrated experience as a Technical Targeting Analyst, or other multi-source targeting experience.
Knowledgeable in the use of common TTA tools and the ability to teach others to use them.
Demonstrated ability to instruct others in the application of TTA tools and methodologies against real-world scenarios.
Successful experience facilitating training working groups and/or discussions.
Exceptional aptitude and ability in coordination, scheduling, and performing outreach.
Strong ability to establish and maintain meaningful directorate, Customer, and community networks; including ability to identify opportunities to integrate targeting tradecraft from those networks into the technical targeting training program.
Willingness to travel CONUS as part of routine work approximately five times per year.
Knowledge of how technical targeting drives technical operations (and vice versa).

The position is located in Chantilly, VA.

Type: Contract
Job #3747

Title: Software Integration Engineer 4 (I&T)
Location: Annapolis Junction, MD
Compensation Range: $210 -$230K
*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.

SIE-4 Qualifications:
Bachelor’s degree in computer science or related field and have at least ten (10) years of demonstrable experience with integrating, installing, configuring, upgrading, compiling, and supporting COTS/GOTS software in a heterogeneous operating system environment.
OR
The individual shall have five (5) years full-time Computer Science directly related work that can be substituted for a degree and have at least ten (10) years of demonstrable experience.
OR
An industry recognized professional certification, as defined in the TT0s, may substitute as one (1) year experience.
OR
A master’s degree in computer science or related field may substitute for two (2) years' experience.

Position Description

The Software Integration Engineer shall be responsible for executing and maintaining automated integration and system testing processes across a diverse range of HPC operating environments. This role involves the development of playbooks and scripts to be leveraged for system-level integration, development of technical documentation, coordination of integration activities, and clear communication of results to key stakeholders.
The Software Integration Engineer shall configure and execute deployments, troubleshoot and resolve issues identified during integration, and support continuous improvement of the deployment process. In addition, the Software Integration Engineer shall conduct performance, functional, redundancy, and failover testing to ensure system stability and reliability under various conditions.
This position requires a detail-oriented professional with strong problem-solving skills and the ability to collaborate closely with Software Engineers, System Administrators, and QA to ensure seamless integration and delivery of software systems.

Position Required Skills

Experience with Linux CLI, Linux tools, Bash scripting
Recent experience with programming in Python
Experience with test automation development
Experience with tracking and reporting issues
Experience troubleshooting hardware and software issues across the full software stack
Experience with IaC principles and automation tools including Ansible
Experience with CI/CD principles, methodologies, and tools including GitLab CI
Experience with Git Source Control System

Position Desired Skills

Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiar with Agile software development principles, methodologies, and best practices

Type: Contract
Job #3744

Systems Engineer
Dulles, VA or State College, PA
Active TS/SCI
Compensation Range: $150,000 – $175,000

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:
• The senior systems engineer will execute multiple aspects of the systems engineering discipline, to include support of software development and test, requirements traceability into software functions, system performance analysis, and system integration and test activities to ensure system requirements achieve validation
• The system engineer will interact with the agile development teams regarding technical considerations, risks, and issue closure associated with the system capabilities and features
• The candidate must also possess the ability to multi-task, adapt to rapidly changing circumstances, effectively network, and communicate to the appropriate levels of the organization and support schedules and delivery milestones
Basic Qualifications:
• Typically requires a bachelor’s degree in science, Technology, Engineering, or Mathematics (STEM) and 5 years of prior relevant experience
• Experience defining system requirements for Agile software development and test teams, ensuring verification through acceptance criteria
• Engineering experience within the full systems and/or software engineering lifecycles
• Experience in system requirement creation and decomposition of capabilities into features with acceptance criteria using agile development tools like JIRA, CONFLUENCE, and JAMA
• An active TS/SCI security clearance is required prior to start date.
Preferred Qualifications:
• Familiarity utilizing Cloud environments, tools and utilizing associated processes and procedures
• Systems engineering experience in DoD architecture and service-oriented system architectures development program and platforms
• Experience using Model Based Systems Engineering (MBSE),
• Experience in performing Project Management
• Current Certification in Security +
• Experience with Containerized Application, Orchestration and Virtual Environments,
• Experience working in a DevSecOps environment, utilizing associated practices and procedures
• Experience working with RedHat Operating Systems
• Experience with Virus scanning application and execution
• Experience working with NIST 800-53, Privacy Framework and Cybersecurity Framework requirements
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: Annapolis Junction, Maryland
Type: Contract
Job #3743

Title: Software Engineer 3
Location: Annapolis Junction, MD
Compensation Range: $215 -$235K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Description:
The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. Works individually or as part of a team. Reviews and tests software components for adherence to the design requirements and documents test results. Resolves software problem reports. Utilizes software development and software design methodologies appropriate to the development environment. Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.
Requirements:

Twelve (12) years’ experience as a SWE in programs and contracts of similar scope, type, and complexity is required.
Bachelor’s degree in computer science or related discipline from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree.

Core Tasks:

Experience programming in Java.
Proficient in using the Spring Boot framework.
Experience working with MongoDB is required.
Familiarity with Kafka for event streaming or messaging.
Some familiarity with the AWS suite, including ECR, is expected.
Experience working with RKE (Rancher Kubernetes Engine).

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)

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)

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

Location: Colorado Springs , Colorado
Type: Contract
Job #3741

Job Title: Unix Engineer
Job Location: Peterson Space Force Base, Colorado Springs, CO
Clearance: Secret
Schedule: 9/80 Onsite
Salary: $125K – 155K
Certification Requirement: Must hold a DoD 8570 IAT Level II certification (e.g., Security+, CASP, CAP, CISSP) prior to start

Position Overview:
We are seeking a Unix Systems Engineer to provide hands-on systems administration and engineering support at Peterson SFB. This role requires expertise across both Solaris and Linux environments, supporting mission-critical systems through daily maintenance, patching, troubleshooting, automation, and cyber compliance. You’ll collaborate with cross-functional teams to ensure system integrity, security, and operational excellence across a dynamic enterprise infrastructure.

Key Responsibilities:

Perform daily systems administration tasks including monitoring, patching, performance tuning, and help desk support.
Build, configure, and maintain both physical and virtual Solaris and Linux systems.
Develop and maintain administrative automation scripts using tools such as Perl, Python, PowerShell, or VBScript.
Manage and troubleshoot complex file systems (ZFS, UFS), including partitioning and resizing.
Provide operational support for VEEAM storage appliances.
Configure and manage LDAP clients and servers; maintain directory services infrastructure.
Integrate Solaris systems with Active Directory for authentication and access control.
Configure and manage Solaris virtualization using PDOM/LDOM technologies.
Apply cybersecurity best practices, including STIG implementation, vulnerability remediation (Nessus/ACAS), and maintaining cyber compliance documentation.
Conduct periodic evaluations of COTS software to ensure relevance, compliance, and supportability.
Support development, integration, and deployment of periodic system releases.
Create and maintain system documentation, architecture diagrams, and engineering design documents.
Provide technical support and root cause analysis for system-related issues.

Basic Qualifications:

IAT Level II certification (Security+, CASP, CAP, or CISSP) in accordance with DoD 8570.01-M.
7+ years of Unix/Linux systems administration experience in enterprise or secure environments.
Hands-on experience with Solaris and Linux OS administration.
Strong scripting experience with at least one language: Python, Perl, PowerShell, or VBScript.
Experience with managing file systems such as ZFS and UFS.
Knowledge of LDAP management and integration.
Familiarity with system hardening, STIGs, and vulnerability remediation tools (e.g., Nessus, ACAS).

Preferred Qualifications:

Experience with Solaris virtualization (PDOM/LDOM).
Familiarity with Active Directory integration in Unix environments.
Experience supporting and managing backup solutions such as VEEAM.
Background working in DoD or classified environments.
Strong troubleshooting, documentation, and communication skills.
Ability to work both independently and within a team setting to solve complex technical problems.

Location: Chantilly
Type: Contract
Job #3740

Program Integrator
*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.

Seeking a Project Integrator. This position translates customer intent into multi-year strategies, annual roadmaps, action plans, and requirements. Track program execution across milestones in preparation for decision points. Assigned work includes designing and orchestrating workflows, business rules, processes, and standard operating procedures. Coordinating course scheduling, final training exercise management, role-player coordination and management.
The position is located in Chantilly, VA.

Qualifications
Required Qualifications:

Active TS/SCI clearance with polygraph.
Bachelor's degree in Business, Science, Engineering, or Education or Liberal Arts or (five years of experience providing training or training support with the customer may substitute in lieu of a degree) and (15) years or more of related experience. Masters and (13) years or more experience; PhD or JD and (10) years or more experience.
Five years (5) years of experience business process and tracking program execution.
Demonstrated experience reading, interpreting, communicating, and presenting complex information.
Demonstrated experience interacting with customers, partners, colleagues, and senior management.
Demonstrated experience listening well and resolving issues identified by stakeholders.

Location: Chantilly
Type: Contract
Job #3739

Technical Instructional Systems Designer:
*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.

Seeking an experienced Technical Instructional Systems Designer (TISD) to support an innovative training program for the Customer’s main technical training office. The candidate will provide TISD support to technical training classes to develop occupational skillsets and help generate dynamic content and design class activities in conjunction with other instructional designers and instructors. The candidate will support multiple training efforts, and work will revolve around content design and development of courses for technical occupational cadres, including scenario-based learning. The candidate will also be responsible for creating lesson plans and learning requirements, along with maintaining the currency of course materials and conducting course reviews to gather feedback and implement adjustments to training material. S/he will utilize project management skills to ensure effective course development and delivery. The position is located in Chantilly, VA.

Qualifications

Active TS/SCI clearance with polygraph.
Bachelor's degree (four years of relevant experience may substitute in lieu of a degree) and (15) years or more of related experience. Masters and (13) years or more experience; PhD or JD and (10) years or more experience.
An ISD certification with 5 years course development experience in the past 7 years after the certificate award.
3 years of experience required of adult learning in any of the following areas: instructional design, instructional technology, experiential learning, or closely related field.
3 years of experience of creating instructional content for adult learners supporting a broad range of training modalities (synchronous, asynchronous, instructor led, web-based training, virtual learning, and/or blended courses).
1 year experience with the IC working in a technical mission area.
Demonstrated experience designing technical course content for the IC.
Knowledge of multimedia production tools and methodology, such as Learning Management Systems, collaboration tools, MS One Note, WordPress, Adobe Captivate, Multimedia tools including the Adobe Creative Suite, and a strong, technical aptitude to quickly learn new software and hardware.

Desired Qualifications:

Certificate in Instructional Design from an accredited institution or a degree in Education.
Advanced degree in Science, Engineering, or Education.
Experience incorporating technology such as gaming, Augmented Reality/Virtual Reality, AI/ML modalities in course content.

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: Chantilly, Virginia
Type: Contract
Job #3737

Seeking an experienced Technical Training Instructor on a training program for technical research, development, and engineering by providing instructional expertise to newly developed courses. Initially the instructor will support the occupational onboarding course that will be approximately two weeks long and will run approximately four times per year, and longer term will include other courses as the occupational curriculum expands. The ideal candidate should be familiar with basic instructional and course design principles to help build course curriculum. The training may include blended and distance learning solutions, along with asynchronous and synchronous approaches to training. The candidate will also help carry out training evaluations, and support creation of a variety of training products such as guides, handbooks, and job aids. The training will emphasize student-centered, experiential learning that requires strong facilitation skills. The candidate will assist with asserting student performance, monitor progress and provide feedback. The candidate will assist the training team with course reviews and modifications between course running's.

The position is located in Chantilly, VA.

Qualifications

Active TS/SCI clearance with polygraph.
Bachelor's degree (four years of relevant experience may substitute in lieu of a degree) and (15) years or more of related experience. Masters and (13) years or more experience; PhD or JD and (10) years or more experience.
More than five years (5) years of experience providing training within the IC.
5 years of experience within the IC in any of the following: Targeting, Technical Operations, or Technical Research, Development or Engineering.
1 year of experience teaching or delivering to adult learners within the IC.
Demonstrated ability to tailor communication and proven ability to facilitate small and large groups of people with diverse backgrounds.
Demonstrated ability to adopt new technologies for knowledge management and/or tailoring of technology to support learning needs.
Demonstrated ability as a self-starter, to team effectively, regularly work outside your comfort zone, and to adapt to emerging technologies and evolving requirements.
Familiarity with all or most of the following tools: Learning Management Systems, Collaboration Tools, MS OneNote, WordPress, Adobe Captivate, Multimedia tools including the Adobe Creative suite.
Demonstrated experience working in a collaborative team environment and partnering across the IC.

Desired Qualifications:

Certificate in Training, Facilitation, Teaching, and/or learning from a professional organization strongly preferred (e.g. Foundations in Teaching and Learning, offered by Udemy).
Extensive experience within the IC supporting multiple missions.
Experience supporting more than one area of technical expertise (Targeting, Technical Operations, or Technical Research, Development, or Engineering).
Advanced degree in Science, Engineering, or Education.
Adult learning experience teaching technical courses using a broad range of modalities (synchronous, asynchronous, instructor led, web-based training, virtual training and/or blended courses).

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.

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

Type: Contract
Job #3735

Software Developer
Chantilly, VA
Active TS/SCI with Polygraph

Job Responsibilities:

Researches, designs, develops, and/or modifies enterprise-wide systems and/or applications software
Analyzes user/business needs and functionality to plan and design software systems to meet those needs
Performs software updates, refinement, testing, and debugging to meet business needs
Provides analysis for reports on software project specifications, activities, or status
Advises on the software or system for optimal documentation and future maintenance and updates
Opportunity to work on critical high-impact projects that contribute to national security

Required Skills:

5+ years of related experience
Experience with PowerShell scripting, JavaScript, Java w/ Spring Boot, TypeScript w/ React+Redux, Graph databases, Gremlin, NiFi, Postgres / PostgreSQL, Ansible, Linux (RHEL) experience and skills, Python
Works independently under limited supervision, strong documentation and communication skills, strong user interaction and business analysis skills
Education: Bachelor’s degree in engineering, Computer Science, or other related analytical, scientific, or technical discipline

Desired Skills:

Object-oriented programming concepts
Experience with Elasticsearch, RabbitMQ / Kafka, Docker / Docker Compose, Nintex, Multithreading

Type: Contract
Job #3724

Senior Systems Engineer
Aurora, CO
Active TS/SCI
Compensation Range: $140,000 – $160,000

Job Responsibilities:
• Assume both financial and technical responsibility for the mission
• Collaborate with Raytheon senior leadership, government customers, and technical Subject Matter Experts to manage system development
• Oversee all aspects of the system, including architectural design, technical roadmap maintenance, and prioritization of requested functional capabilities

Basic Qualifications:
• Typically requires a Bachelor's Degree in Science, Technology, Engineering, or Mathematics (STEM) and 5 years of prior relevant experience
• Experience decomposing system design
• Experience with technical proposals and/or new business development
• Agile software development experience in the role of Product Owner or Scrum Master
• Active TS/SCI security clearance

Preferred Qualifications:
• Proven ability to develop solutions that meet system performance, availability, and reliability constraints
• Strong track record of building and maintaining effective working relationships across all organizational levels, including government customers, IPT leadership, technical leads, chief engineers, and system architects
• Skilled in communicating status updates, identifying issues, and presenting resolution plans to key stakeholders—including Raytheon senior management, customers, and major subcontractors—while managing multiple concurrent project deliverables under tight deadlines
• Experience with proven record of accomplishments
• Experience with complex satellite ground systems, particularly previous deployment of developed systems to ground station operations

Location: Annapolis Junction
Type: Contract
Job #3719

Title: System Engineer
Location: Annapolis Junction, MD
Compensation Range: $150 -$170K
*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.

Experience developing scripts using Bash/Python
Experience with basic Linux system administration
Experience with continuous monitoring of multiple mission critical systems in a Cloud or on-prem enclave Linux environment
Experience maintaining operational security posture for an information system
Experience using the Agency's suite of corporate tools to report/track mission systems security information including LatteArt, Xacta, SEAR, Biscotti, UAM, CYBORGBUNNY, etc.
Experience preparing documentation for System Security Plans (SSPs), Risk Assessment Reports, System Requirements Traceability Matrices (SRTMs), and Certification and Accreditation packages
Experience using Git Source Control System

Position Desired Skills

Experience with the Atlassian suite of tools including Confluence and Jira

Location: Annapolis Junction
Type: Contract
Job #3718

Title: Software Engineer 3 (HPC)
Location: Annapolis Junction, MD
Compensation Range: $180 -$200K
*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 Description
The Software Engineer shall be responsible for performing characterization and performance tuning of various software solutions for multiple HPC node types. The Software Engineer shall collaborate with HPC SMEs, mission customers, and other stakeholders to understand their computational needs and develop efficient software solutions to meet those requirements. This position involves working with parallel computing frameworks, optimizing algorithms for parallel execution, and ensuring scalability and performance of software applications on HPC clusters.
Qualifications:
Master’s degree in computer science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.
OR
Bachelor’s degree in computer science or related discipline from an accredited college or university, plus seven (7) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity
OR
Nine (9) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.

Position Required Skills

Experience using the Linux CLI
Proficiency in scripting (Bash/Python) to automate tasks and processes
General HPC technical knowledge regarding computers, network, memory, and storage components
Experience developing software applications and libraries with programming languages such as C, C++, and Python in a Linux environment
Has experience with modern build system frameworks, such as CMake
Experience optimizing code performance through parallelization, vectorization, and other optimization techniques
Experience documenting software design, implementation, and performance optimizations
Experience troubleshooting and debugging performance issues in HPC applications
Experience performing HPC benchmarking testing
Experience with containerization technologies such as Docker, PodMan, containerd
Experience with automation frameworks including Ansible for orchestrating deployment
Experience with CI/CD principles, methodologies, and tools such as GitLab CI and Jenkins
Experience with Git Source Control System

Position Desired Skills

Experience with HPC open-source parallel computing frameworks such as OpenSHMEM, pthreads, OpenMP, MPI, and UPC
Experience with CUDA and/or OpenCL frameworks to develop software for GPUs
Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiar with Agile software development principles, methodologies, and best practices

Position Required Skills

Experience using the Linux CLI
Proficiency in scripting (Bash/Python) to automate tasks and processes
General HPC technical knowledge regarding computers, network, memory, and storage components
Experience developing software applications and libraries with programming languages such as C, C++, and Python in a Linux environment
Has experience with modern build system frameworks, such as CMake
Experience optimizing code performance through parallelization, vectorization, and other optimization techniques
Experience documenting software design, implementation, and performance optimizations
Experience troubleshooting and debugging performance issues in HPC applications
Experience performing HPC benchmarking testing
Experience with containerization technologies such as Docker, PodMan, containerd
Experience with automation frameworks including Ansible for orchestrating deployment
Experience with CI/CD principles, methodologies, and tools such as GitLab CI and Jenkins
Experience with Git Source Control System

Position Desired Skills

Experience with HPC open-source parallel computing frameworks such as OpenSHMEM, pthreads, OpenMP, MPI, and UPC
Experience with CUDA and/or OpenCL frameworks to develop software for GPUs
Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiar with Agile software development principles, methodologies, and best practices

Location: Longmont , Colorado
Type: Contract
Job #3717

Database Administrator
Location: Longmont, CO
Clearance: Secret but TS/SCI preferred
Schedule: 9/80
Salary: $130k – $165k

Position Overview:
We are seeking an experienced Senior Database Engineer with a minimum of 7 years of hands-on experience in database infrastructure engineering to support a complex ground infrastructure program within a national security mission space. In this role, you will take the lead in designing, implementing, and maintaining secure, scalable, and highly available database solutions across critical systems.
This is an infrastructure-focused role requiring expertise in enterprise-grade database engineering, with an emphasis on system performance, security, and fault tolerance. The ideal candidate is a self-driven technical leader who can collaborate across engineering disciplines and contribute to long-term architecture and automation efforts.

Key Responsibilities:

Design, implement, and maintain secure, high-availability database infrastructures across development, integration, and production environments.
Manage enterprise-class databases using PostgreSQL, MySQL, and Microsoft SQL Server.
Implement clustering, replication, automated failover, and backup/recovery procedures to support system availability and data integrity.
Apply cybersecurity compliance requirements, including implementation of DISA STIGs or equivalent database hardening standards.
Collaborate with software, systems, cybersecurity, and DevSecOps teams to integrate database platforms with evolving system architectures.
Create and maintain architecture documentation, technical procedures, and operational guides (e.g., CONOPS).
Lead database automation efforts using scripting and Infrastructure as Code (IaC) tools.
Support Agile development cycles and CI/CD processes, including configuration and change management.

Basic Qualifications:

7+ years of professional experience in database engineering or administration for enterprise or mission-critical systems.
Expertise in at least two major platforms: PostgreSQL, MySQL, Microsoft SQL Server.
Strong Linux experience, specifically with Red Hat Enterprise Linux (RHEL).
Proven success designing and supporting high-availability and fault-tolerant database systems.
Experience implementing security controls and system hardening in alignment with government security standards (e.g., STIGs).
Proficiency with scripting languages such as Python, Bash, or PowerShell.
Excellent collaboration and communication skills in cross-functional technical environments.

Preferred Qualifications:

Experience with container orchestration platforms such as Red Hat OpenShift or Kubernetes.
Familiarity with virtualization technologies like KVM or VMware.
Background supporting secure defense, aerospace, or satellite ground systems.
Experience with Infrastructure as Code (e.g., Ansible, Terraform).
Working knowledge of Agile methodologies, DevSecOps practices, and CI/CD toolchains.
Familiarity with security classification and data protection policies.
Experience writing technical documentation, including system procedures and CONOP

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.

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.

Description: As a Software & Data/AI Engineer in this role, you will be tasked with the intricate process of analyzing both structured and unstructured datasets. Your primary objective will be to identify commonalities across these datasets, organize them into a uniform structure, and perform entity resolution on the unstructured data. This will require a deep understanding of Python development and a proven track record of handling diverse data types. You will be expected to leverage your strong AI experience, particularly with large language models and GenAI, to implement a Chatbot-style interface that will serve as a critical touchpoint for stakeholders. Your role will also involve the design, architecture, and prototyping of complex AI-based systems that are essential for the organization's data management strategy.
Your technical toolkit should include proficiency in working with vector databases and SQL, as well as a solid grasp of User Interface implementation using frameworks such as React or Angular. Familiarity with AWS cloud architecture will be crucial as you will be responsible for deploying AI models that can process a wide array of structured and unstructured data formats. The ability to clean data for ingestion and analysis is also a key part of your role, ensuring that the data is primed for optimal AI model performance. Your success in this position will be bolstered by your capacity to examine data holdings and use cases critically, enabling you to determine the most effective approach for grooming data for the AI systems you will be developing.
To excel in this position, you should bring a wealth of experience in AI model optimization, which will be central to your daily responsibilities. Your role will require you to integrate Large Language Model chatbots, a cutting-edge technology that will enhance the organization's data interaction capabilities. The ability to navigate and implement vector databases will be essential, as this forms the backbone of the data structuring process. Your success will be measured by your ability to seamlessly integrate AI models that effectively manage the organization's diverse data formats. Your innovative approach to AI-based architecture will not only streamline data processes but also set new standards for data management within the organization.

Here is what you need:

Python development
Handling structured and unstructured data
Entity resolution
Strong AI experience working with large language models and GenAI
Experience working with vector databases
SQL
User Interface implementation using Javascript, React, Angular or a similar framework
Experience integrating APIs
AWS cloud architecture
AI model optimization
Ability to examine data holdings and use cases to determine best approach for grooming data

Bonus if you have:

Field specific skills or certifications related to AI, data analysis, or software engineering

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.

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: Herndon, Virginia
Type: Contract
Job #3713

Title: Cloud Security Engineer
Location: Herndon, VA

Seeking a motivated, career and customer-oriented Cloud Security Engineer to join our team in Herndon, VA. Join a team of cybersecurity experts that protects and defends the largest target in the world. As a Cloud Security Engineer on our team, you will utilize the latest tools available and assist in creating new ones while allowing you to advance the nation's information security posture. Responsibilities include but are not limited to:

Design and champion the strategy for detecting and responding to cyber incidents within Oracle Cloud Infrastructure (OCI) or Google Cloud Platform (GCP)
Create advanced detection rules and tradecraft to uncover sophisticated cloud-based attacks
Optimize data pipelines to fuel rapid incident analysis and proactive threat hunting in the cloud
Serve as the Subject Matter Expert (SME) during critical cloud security incidents, guiding the CSOC team to swift resolution
Continuously evaluate emerging cloud security tools and techniques to enhance our defenses and response capabilities
Partner with cross-functional teams and mentor less experienced analysts to build a stronger cloud security posture across the organization

Minimum Qualifications:

High School Diploma and 15+ years of experience in cloud or cyber security or Bachelor’s degree and 11+ years of experience
5+ years of experience in cyber incident response
3+ years’ experience architecting, engineering, implementing, or securing solutions within Google Cloud Platform (GCP) OR Oracle Cloud Infrastructure (OCI)
2+ years’ experience with data ingestion, processing, and analysis of data relevant to security investigations, such as log management, basic ETL concepts or similar.
Experience with at least one scripting language, such as Python or Bash, for task automation or security analysis
Experience with cloud security principles, including identity and access management, network security, and data protection within the chosen platform (GCP or OCI)

Preferred Qualifications:

Degree in Computer Science, Information Security, or a related technical field Relevant Certifications such as CISSP, CCSP, CCSK, GCFA, GCIH, or cloud-specific security certifications (e.g., Google Cloud Security Engineer, Oracle Cloud Security Architect)
Experience in security services and best practices within either Google Cloud Platform (GCP Security Command Center, Chronicle, IAM, Networking) OR Oracle Cloud Infrastructure (OCI Cloud Guard, Security Zones, IAM, Networking)
Experience leading and coordinating complex cloud security incident investigations, including forensic analysis and containment strategies
Ability to develop and implement automation scripts and workflows (e.g., Python, Cloud Functions/Lambdas, SOAR platforms) to enhance incident response efficiency
Clearance Requirements: Must have a current/active TS/SCI w/Polygraph

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.

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: Herndon, Virginia
Type: Contract
Job #3707

Title: Python Developer
Location: Herndon, 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.

Create robust and resilient data pipelines to connect data sources to analytics tools
·         Work with various analysts to craft requirements
·         Enumerate the necessary datasets and design the data model and schemas to support the requirements
·         Provide platform support, including problem solving and debugging, for production issues
·         Interact and collaborate across the services and communities involved in multi-domain Cyber Defense to achieve breakthrough improvements in capabilities

Basic skills
–          Experience coding in Python.
–          Solid understanding and experience with Database Management, SQL, PostgreSQL.
–          Experience with ETL tools/data transformation/data pipeline.
–          Experience taking data collection requirements and translating those requirements into implementable solutions.
–          Critical thinking and problem-solving skills, ability to design solutions and troubleshoot issues effectively.
–          Analyze data sources for accuracy, data prioritization, and apply appropriate logic to developed solutions.
–          Communication skills to collaborate with colleagues via multiple communications channels.
–          Linux experience

Desired Skills
–          Experience with Javascript/NodeJS

Location: Colorado Springs
Type: Contract
Job #3706

Job Title: Cyber Systems Security Engineer
Job Location: Colorado Springs
Clearance: TS/SCI
Compensation Range: $140K – $160K

Program Overview:
We are seeking a Cyber Systems Security Engineer (CSSE) to support a MILSATCOM program. This position plays a critical role in protecting space and ground assets from cyber threats and ensuring mission continuity through proactive cybersecurity engineering, monitoring, and risk mitigation.
This role involves a blend of systems engineering, cyber threat analysis, vulnerability remediation, and compliance support. You will operate in a highly secure, mission-critical DoD environment with direct involvement in the cyber defense of national space communication systems.

Job Responsibilities:

Maintain continuous awareness of current and emerging cyber threats relevant to space and ground systems.
Analyze threat intelligence to assess potential system impacts and recommend mitigation strategies.
Develop and recommend Courses of Action (COAs) to address and prioritize cybersecurity risks.
Create and maintain cyber incident response and mission recovery procedures.
Support the development of Tactics, Techniques, and Procedures (TTPs) for cyber event response and mission continuity.
Support the integration and operation of intrusion detection/protection systems (HIDS, NIDS, IPS) within MILSATCOM environments.
Analyze and report data from tools such as DISA Endpoint Security Solution (ESS) and ACAS.
Serve as the operational point of contact for the cybersecurity tool suite (Cybersecurity Subsystem – CSS).
Administer access and monitoring for CSS tools such as Splunk, ACAS, and ESS.
Conduct Tier 1 troubleshooting of cybersecurity tools and services.
Prepare and maintain RMF artifact delivery schedules and submission tracking.
Develop and update system documentation, including hardware/software baselines, PPSM, and network diagrams.
Coordinate directly with Information System Security Officers (ISSOs) and ISSMs to ensure RMF compliance.
Perform network vulnerability scans, analyze findings, and prioritize remediation efforts.
Execute STIG scanning and baseline hardening activities across operating systems and applications.
Deliver fully tested vulnerability patches and virus signature updates on a regular and emergency basis, with Government approval.
Support creation and updates of Security Assessment Plans (SAPs) and related artifacts.
Provide cybersecurity engineering expertise in technical meetings and working groups.
Collaborate with government personnel and other engineering teams to support ongoing system sustainment and cybersecurity posture improvements.

Required Skills:

Minimum 7+ years of experience in cybersecurity engineering, preferably supporting DoD or space-related systems
Experience with RMF, DISA STIGs, and system accreditation processes
Proficiency with vulnerability management tools such as ACAS, Splunk, and ESS
Experience with network and host-based intrusion detection/prevention systems (HIDS/NIDS/IPS)
Strong knowledge of DoD cybersecurity frameworks and best practices
Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related technical field (or equivalent experience)

Preferred Qualifications:

CISSP, CASP+, or CEH certification
Familiarity with satellite communications (SATCOM) systems and mission ground segments
Experience supporting MILSATCOM or other protected tactical communications systems
Knowledge of Agile and DevSecOps methodologies
Familiarity with scripting languages (PowerShell, Python, etc.)

Type: Contract
Job #3699

Senior Linux Systems Administrator
Aurora, CO
Active TS/SCI with Poly
Compensation Range: $125,000 – $145,000

Job Responsibilities:

Supporting a Raytheon program in a classified environment as a Linux System Administrator.
Responsibilities include building, maintaining, and securing Information Technology systems and directly supporting customer mission-critical capabilities.
You will work closely with program developers and system engineers to research issues, determine root causes and implement solutions to system problems.
Must be able to support occasional after hour maintenance and on-call support and must be able to lift up to 35 pounds in support of hardware installations.
Occasional travel may be required for installation support. This position is an onsite role.

Basic Qualifications:

Typically requires a Bachelor’s degree and a minimum of 5 years of prior relevant experience or a master’s degree and minimum of 3 years of prior relevant experience.
Active and transferable U.S. government issued TS/SCI with poly security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
Must have an active DoD 8570 IAT Level 2 certification (or higher) on start date. IAT Level 2 requires one or more of the following Professional Certifications: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, CND.
Experience administering Red Hat Linux based systems with minimal support, to include patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening

Preferred Qualifications:

Using and developing with automation tools/frameworks such as Terraform, Ansible, and Chef as well as scripting – particularly in Bash and Python
Experience administering Windows based systems
Experience with pipeline tools such as Jenkins and Artifactory
Demonstrated ability to work independently and troubleshoot problems with efficiency
Deployment and administration of systems in Amazon WebServices (AWS)

Type: Contract
Job #3698

Software Engineer
Aurora, CO
Active TS/SCI w/ Poly
Compensation Range: $125,000 – $140,000

Job Responsibilities:

Create both the front end for user to interface and the back end for processing and data storage
Create solutions for continuous integration/continuous deployment pipeline and for scalability to meet surge demands
Conduct exploratory data analysis on new sources of ISR data, creating discovery opportunities for optimization of AI and ML applications
Create, maintain, and track the design of data pipelines utilized to streamline OPIR data ingestion, scale data streams, and develop predictive analytic products
Standardize process, scalability with local teams, and monitoring and maintenance of operational metrics.
Facilitate data collection, cyber security compliance, and communication
Collaborate with cross-functional teams including data scientists, analysts, network engineers, and software engineers to understand data requirements and develop scalable data solutions
Develop, maintain, and optimize ELT processes to ensure the timely and accurate movement of data from source systems to data warehouses and other storage solutions
Oversee and maintain the day-to-day operation of Linux-based network servers, cloud-based environments, and virtual environments
Implement, administer, and troubleshoot security, data recovery, and network infrastructure solutions

Required Skills:

BS degree or six years applicable software experience.
Demonstrated experience creating, implementing, and maintaining scripts for process automation, infrastructure monitoring, and proactive reporting (JavaScript/Python/Perl, etc.).
Software development in JAVA and/or C++ within the context of the full software development lifecycle.
Experience in a DevOps role and environment. Prior knowledge and implementation of Kubernetes.
Prior experience supporting design, development, integration, and maintenance of new software functionality.

Location: Colorado Springs, Colorado
Type: Contract
Job #3695

Job Title: Systems Integration & Test Engineer
Job Location: Colorado Springs, CO
Clearance: TS/SCI
Compensation Range: $125K – $160K

Program Overview:
We are seeking a System Integration & Test Engineer to provide engineering support for a Satellite Combined Orbital Sustainment program, focused on ensuring mission readiness for protected MILSATCOM capabilities. This role supports both space and ground system segments, and is critical to the reliability, security, and performance of Department of Defense communications infrastructure. This position involves the integration, testing, and sustainment of complex IT systems in both physical and virtualized environments. You will work on-site at Peterson Space Force Base and be part of a high-impact, multi-disciplinary engineering team operating in a secure, mission-focused environment.

Job Responsibilities:

Develop and implement integrated IT solutions that span the full system development lifecycle: design, development, integration, testing, deployment, and support.
Perform system upgrades, COTS software installations, and patch deployments across classified environments.
Coordinate the integration of new software and hardware systems into operational space and ground segment architectures.
Support Windows-based system environments, including maintenance, configuration, and troubleshooting.
Design and implement system automation and administration scripts to improve deployment repeatability and reduce manual effort.
Write, read, and debug PowerShell scripts; work with other automation tools as needed.
Collaborate with cybersecurity teams to ensure systems meet all compliance and accreditation requirements, including STIG implementation and RMF processes.
Perform rigorous system testing, diagnostics, and troubleshooting in classified environments.
Support Agile-based workflows, participating in planning, development, testing, and sprint review sessions.
Provide technical documentation, system diagrams, and engineering artifacts in accordance with program and government standards.

Required Skills:

U.S. Citizenship and active TS/SCI clearance required
5+ years of experience in systems engineering, integration, or IT support in a secure or classified government environment.
Proficiency with Microsoft Windows Server and Desktop OS support.
Experience with COTS software deployment and system-level integration in DoD systems.
Strong scripting capabilities (e.g., PowerShell, Python, or Bash) for task automation.
Familiarity with virtualized infrastructure (e.g., VMware, Hyper-V).
Demonstrated knowledge of cybersecurity compliance, including DISA STIGs, RMF, and system accreditation workflows.
Strong analytical and troubleshooting abilities in high-consequence environments.

Preferred Skills:

Experience supporting MILSATCOM or other DoD satellite/space-based systems.
Understanding of protected satellite communications systems or secure ground segment technologies.
Familiarity with DevSecOps practices, automation frameworks, and infrastructure as code.
Exposure to Agile tools (e.g., Jira, Confluence, Git) and continuous integration environments.

Location: Annapolis Jct
Type: Contract
Job #3692

Title: Software Engineer 3 (RAG)
Location: Annapolis Junction, MD
Compensation Range: $180 -$200K
*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.

SWE-3 Qualifications: Master’s degree in computer science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.
OR
Bachelor’s degree in computer science or related discipline from an accredited college or university, plus seven (7) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity
OR
Nine (9) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.

Position Description:
The Software Engineer shall be responsible for the design, development, and deployment of a Retrieval Augmented Generation (RAG) solution deployed in a HPC Linux environment. Candidates applying for this position must be familiar with LLMs (Large Language Models), LLM orchestration frameworks, knowledge retrieval, and security-aware AI systems.
Position Required Skills:

Experience with Linux system administration, CLI, and shell scripting
Experience with containerization technologies such as Docker, PodMan, and containerd
Experience deploying containerized services under Kubernetes or Docker Compose orchestration
Recent software development experience using Python, Golang
Familiar with RAG pipelines, LLMs, and embedding models
Experience with CI/CD principles, methodologies, and tools including GitLab CI
Experience using metrics and monitoring tools such as Prometheus and Grafana
Experience using Git Source Control System

Position Desired Skills:

Experience working with and debugging GPU-enabled applications
Familiar with LLM orchestration such as Open API API
Experience with distributed processing technologies such as Spark, Dask, or Ray for data processing ETL workflows
Experience with SQL, Elasticsearch, and Vector databases
Experience with HTMX or Hyper-script
Experience with HW/SW aspects of multi-node, multi-GPU AI model training
Knowledge of AI inferencing solutions such as Nvidia NIM/TRITON, vLLM, and direct deployment (e.g. Ray)

Experience with the Atlassian suite of tools including Confluence and Jira

Location: Chantilly, Virginia
Type: Contract
Job #3688

Title: Software Engineer
Location: Chantilly, VA

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: Annapolis Junction, Maryland
Type: Contract
Job #3684

Title: Android-Savvy CNO Developer 1
Location: Annapolis Junction, MD
Compensation Range: $120 -$140K
*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.

Assist in the development and maintenance of native Android code using C and ARM assembly
Contribute to Python-based tooling and automation used in the mobile app development lifecycle
Participate in reverse engineering tasks, including code analysis and binary inspection
Work with basic networking concepts for app communication and data flow debugging
Collaborate with senior engineers to implement and test low-level system features
Document technical processes and findings clearly and concisely

Minimum Qualifications:

Bachelor’s degree in computer science or computer engineering (or something extremely similar) and 1+ year of experience. The year of experience must be in software development or an extremely related discipline.
This LCAT also requires 1 year of cybersecurity/CNO-specific development.
Basic experience in native Android development using C or C++
Familiarity with ARM assembly language and reverse engineering concepts
Working knowledge of Python scripting
Understanding of basic networking concepts (TCP/IP, HTTP, etc.)
Strong problem-solving skills and attention to detail
Ability to work independently and within a team

Preferred Qualifications:

Exposure to tools like IDA Pro, Ghidra, or similar reverse engineering platforms
Experience with Android NDK development
Understanding of Android system internals or mobile security principles

Type: Contract
Job #3683

Title: Test Engineer
Location: Hanover, MD
Compensation Range: $170 -$190K
*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.

Core Tasks:

Strong web application testing experience
Ability to lead and take ownership/responsibility
Outstanding interpersonal skills with a customer service mentality
Ability to design, oversee, and perform software testing
Excellent documentation skills

Requirements:

Bachelor's degree in Math, Science, Engineering, Statistics, Engineering Management, or related discipline from an accredited college or university. Four years of additional test engineering experience may be substituted for Bachelor's degree
Minimum of 5 years of experience in Software System Testing
Minimum of 5 years of experience in web application testing
Experience with Agile software issues tracking tools (i.e. JIRA, Trac, Redmine, etc.)
Ability to work independently and explore options
Experience in the development of test documentation such as test plans, procedures, Test reports
Ability to work as part of a team environment

Type: Contract
Job #3681

Title: Data Scientist
Location: Falls Church, VA
Clearance: TS/SCI w/ CI poly

Duties & Responsibilities:
• MLOps, Model Engineering, Training on time series data.
• After few weeks training on Customer's AI platform, develop AI-based applications using Customer's platform for operational cloud-deployed and secure lab deployed AI-based applications.
• Develop candidate models that are promoted to active models when their performance meets threshold.
• Train, validate and deploy machine learning pipelines
• Test, troubleshoot, and enhance customer AI-based applications based on feedback.
• Manage individual project deliverables
• Identify application performance bottlenecks and implement optimizations
• Write application specifications and documentation
• Articulate methodologies, experiments, and findings clearly in actionable way.
• Work in a fast-paced environment.
• This is NOT a data analytics role using Tableau or PowerBI.
• This is NOT an ETL & SQL role.
• This is NOT a R&D role prototyping at low TRL.

Required Skills:
• Bachelor’s degree in a Science, Technology, Engineering or Mathematics (STEM), or comparable area of study. No experience in lieu of.
• 5+ years of Data Science development experience using Python
• Proficiency in data science, machine learning, and analytics, including statistical data analysis, model and feature evaluations.
• Strong proficiency in NumPy & PANDAS.
• Demonstrated skills with Jupyter Notebook or comparable environments
• Practical experience in solving complex problems in an applied environment, and proficiency in critical thinking.
• Candidates require a TS to start. TS/SCI with Polygraph preferred

Preferred Skills:
• Degree in Data Science, Machine Learning, Computer Science, Engineering, Statistics, or equivalent fields
• Strong mathematical background (linear algebra, calculus, probability & statistics)
• Experience with machine learning model training and analysis through open-source frameworks (Pytorch, Tensorflow, Sklearn)
• Experience crafting, conducting, analyzing, and interpreting experiments and investigations.
• Experience with modern software development tools and practices (Git, pull requests)
• Experience analyzing model performance with relevant metrics and optimizing.
• Familiarity with AI agent frameworks
• Ability to drive a project and work both independently and in a team
• Smart, motivated, can do attitude, and seeks to make a difference
• Excellent English communication and collaboration skills, particularly in multidisciplinary teams with data scientists, software engineers, product owners, & solution architects.

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.

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: Annapolis Junction, Maryland
Type: Contract
Job #3663

Title: Usability/Human Factors Engineer
Location: Annapolis Junction, Maryland
Compensation Range: $145 – $165K
*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:
Seeking a Usability/Human Factors Engineer to join the software development team who will develop and sustain integrated, feature-rich capabilities that promote modernization of visualization and presentation tools. The software development team will provide application development and support to tools that allow mission analytic users to view existing data or contribute new information in a collaborative environment.
The Usability/Human Factors Engineer will focus on solving user experience challenges on a highly complex application used by a wide range of users. The Usability/Human Factors Engineer works with developers, managers, and system engineers to keep the product modern and cutting edge. Additionally, the Usability/Human Factors Engineer 2 will research and document user workflows, design and create mockups, engage with users, and interact with the development teams using tools such as Axure and Adobe Creative Cloud Suite.
Additional information:

Approximately 15 team members made up of software, system, and test engineers
Work performed in contractor facility in Annapolis Junction

Required Education:

Bachelor’s degree in cognitive and/or experimental psychology, human factors engineering, or engineering related field (e.g. systems engineering, software engineering, business process engineering). Advanced degree in these fields is desired

Individual Capabilities Required:

At least ten (10) years experience in this or related field and have familiarity with task analysis, user interface design, and usability testing
At least five (5) years user-experience design and testing experience
Direct, conduct usability testing and work closely with product designers and process engineers developing applications
Designing and developing user surveys to obtain user feedback
Use task experience in each of the usability and software engineering cycle phases (analysis, design, implementation, and deployment)
Direct, conduct usability testing and work closely with product designers and process engineers developing applications
Designing and developing user surveys to obtain user feedback
Use task experience in each of the usability and software engineering cycle phases (analysis, design, implementation, and deployment). To work closely with users (analysts) to research for and document user profiles, analysis tasks, workflows, and user scenarios; in order to create user interface design from specifications provided

Location: San Antonio, Texas
Type: Contract
Job #3662

Title: Senior Red Hat Enterprise Linux (RHEL) 9 Consultant
Location: San Antonio, Texas
*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.

Position Overview:
We are seeking highly skilled and motivated Senior RHEL 9 Consultants to support a mission-critical government program in a secure environment.
The ideal candidate will possess strong expertise in Red Hat Enterprise Linux (RHEL) 9, with a deep understanding of Red Hat Ansible Automation Platform (AAP) at Level 2 or higher. The role involves working closely with infrastructure technologies, including OpenShift Container Platform (OCP), Red Hat Satellite (SAT), and Red Hat Trusted Application Pipeline.

Key Responsibilities:

Deploy, configure, manage, and support RHEL 9 systems in a secure, mission-critical environment.
Develop and maintain Ansible automation playbooks and workflows using Red Hat AAP (Ansible Automation Platform).
Collaborate with DevOps and platform engineering teams to support containerized workloads using OpenShift (OCP).
Manage system patching, provisioning, and configuration using Red Hat Satellite (SAT).
Support CI/CD initiatives and secure application development pipelines via Red Hat Trusted Application Pipeline (preferred).
Troubleshoot system performance and availability issues across infrastructure platforms.
Ensure systems and environments meet government security and compliance standards.

Required Qualifications:

Minimum of 5+ years of hands-on experience with RHEL, including administration and troubleshooting in enterprise environments.
Proficient in Red Hat Ansible Automation Platform (AAP) – Level 2 or equivalent experience.
Experience with RHEL 9 in production settings.
Familiarity with OpenShift, Red Hat Satellite, and enterprise-grade automation practices.
Security+ or other DoD-approved IAT Level II certification (per DoD 8570 requirements).

Preferred Qualifications:

Experience with Red Hat Trusted Application Pipeline.
Red Hat Certified Engineer (RHCE) or other Red Hat certifications.
Strong scripting skills (e.g., Bash, Python).
Familiarity with Agile methodologies and DevSecOps practices.

Location: Anchorage, Alaska
Type: Contract
Job #3658

Title: Digital Network Exploitation Analyst Lvl 3/Lvl 4
Location: Anchorage, AK

Job Responsibilities:

Evaluate target opportunities using all source data to understand and map target networks, and to assist in developing detailed exploitation and operations plans.
Analyze SIGINT and cybersecurity data at multiple levels up and down the OSI network stack and bring a solid understanding of logical/physical IP core infrastructure, communication devices and how they connect to networks, and the traffic movements in a network.
Be involved in developing new tradecraft needed to perform this analysis as technologies evolve.
Be part of a team, working together with government, military, and contractor personnel to develop shared understandings of intelligence needs, mission relevance, and areas of expertise.
Apply your innate curiosity and analytical talent to form hypotheses, critically assess and choose analysis techniques, then query, merge, enrich, evaluate, and pivot within data to attain and share insights
Distill, document, contextualize and share your findings–including any new tradecraft that you develop–with teammates, stakeholders, and intelligence consumers.

Education:
Degree in Computer Science. Degree in related fields (e.g., Engineering, Mathematics) may be considered relevant if programs contain a concentration of courses in the following foundational CS areas: algorithms, computer architecture (not network architecture), programming methodologies and languages, data structures, logic and computation, and advanced mathematics (for example, calculus, discrete mathematics). Information Technology (IT) and Information Security (IS) degrees may be considered relevant if the programs contain the amount and type of coursework equivalent to a Computer Science (CS) major.

Desired Experience:
Relevant experience must be in computer or information systems design/development/analysis roles. In addition, it may also include engineering hardware and/or software, programming, computer/network security, vulnerability analysis, penetration testing, computer forensics, information assurance, systems engineering, and/or network and systems administration. Completion of military training in a relevant area such as JCAC (Joint Cyber Analysis Course) may be considered towards the relevant experience requirement (i.e., 24-week JCAC course may count as 6 months of experience).

Location: Herndon, Virginia
Type: Contract
Job #3657

Title: Data Engineer
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.

We are looking for a skilled Python Data Engineer to join our team. As a Python Data Engineer, you will be responsible for designing, developing, and maintaining data pipelines. We are looking for someone to design, build, and optimize systems for data collection, storage, access, and analytics at enterprise scale. Join a team that creates data pipelines to collect and convert raw Cyber related data into formats usable by our cyber analysts and data scientists. Collaborate within and across teams to support delivery and educate end users on complex data products/analytic environment. Perform data and system analysis, assessment and resolution for complex defects and incidents and correct as appropriate. Your role and responsibility are to make data available, accessible, and secure to stakeholders.

Responsibilities include, but are not limited to:

* Build and operationalize complex data solutions, correct problems, apply transformations, and recommending data cleansing/quality solutions.

* Operate and manage a custom codebase and its integration with open-source/vendor data platforms and products.

* Perform analysis of complex sources to determine value and use and recommend data to include in analytical processes.

* Incorporate core data management competencies including data governance, data security and data quality.

* Test data movement, transformation code, and data components.

* Create robust and resilient data pipelines to connect data sources to analytics tools

* Platform support including problem solving and debugging, especially for production issues.

* At least 5 years of hands-on experience in an enterprise-scale environment

* Experience in developing, testing, implementing, and maintaining complex information technology applications, systems, services

* Knowledge of drafting technical program documentation, such as end user operational instructions or training guidelines

* Experience in software engineering with Python and using software version control systems (e.g., Git)

* Knowledge of file formats (e.g., JSON, XML)

* Knowledge of data platforms (e.g., Elasticsearch/Kibana, Splunk)

* Fundamental knowledge of the data ETL pipeline, including retrieval (e.g., API consumption /integration), extraction, transformation, normalization, enrichment, correlation, and storage

* Full Scope Clearance

* Experience in analyzing and defining local and enterprise information system requirements, perform system/application design, develop capability prototypes, and transition applications to production

* Familiarity with Cloud services (e.g., Lambdas, EC2s. and S3)

* Research and analytical skills

* Excellent problem-solving skills

* Strong organizational skills and attention to detail

* Strong presentation skills to brief others on your findings and recommendations

* Solid Teamwork Skills – the ability to collaborate with others who are conducting research in the same, similar, or different areas

Location: Herndon, Virginia
Type: Contract
Job #3656

Title: Network Engineer/Analyst
Location: Herndon, VA

We are seeking a Cyber Network Defense Analyst in Herndon, VA. As a Cyber Network Defense Analyst on our team, you will use your expertise in Host Based Intrusion Detection Systems (IDS), Intrusion Prevention Systems (IPS) and specialized network defense to provide innovative and creative solutions to challenging cyber security problems. Manage and administer the tuning of rules, signatures, and custom content for CND applications and systems. Identify potential conflicts with implementation of any CND tools within the enterprise and develop recommendations to remediate these conflicts. You will utilize the latest cyber tools available and assist with creating new ones while allowing you to advance the nation's information security posture.

Responsibilities include, but are not limited to:

* Provide malicious code detection, intrusion detection, and information security tool development and integration.

* Utilize forensic analysis to identify malware, misuse, and/or unauthorized activity.

* Investigate and report on virus and malware alerts or incidents to determine root cause, entry point of code and damage risk.

* Analyze all data sources, including Internet, Intelligence Community (IC) reporting, security events, firewall logs, and other data sources to identify malware, misuse, unauthorized activity or other cyber security related concerns.

* Track intelligence using open source and classified sources to identify malicious code threats and provide solutions to counteract that threat.

* Create, edit, and manage signatures, custom rules and filters for specialized network defense systems including but not limited to, Network and host-based IDS, IPS, firewalls and web application firewalls, Security Orchestration, Automation and Response (SOAR), Proxy, and Security Information and Event Management (SIEM) systems

* Prepare data analytics and reporting.

* 15 years of experience in Network Defense, Network Operations, Cybersecurity, Network Engineering, Security Engineering, Information Security, Systems Architecture or Data Analysis

* Experience writing script in programming languages such as Python, JavaScript, Yara or Snort

* Experience using SIEM tools for case development and application

* Experience with network security applications, protocols, and associated hardware

* Knowledge of enterprise cyber defense technologies such as SIEM systems, SysMon, network and host based IDS and IPS, network and host-based malware detection and prevention, Endpoint Detection & Response (EDR) and Network Detection & Response (NDR), Network and Host malware detection and prevention (EDR/NDR) tools, forensics tools and applications, Web/Email gateway security technologies, Security Orchestration, Automation and Response (SOAR) and cloud based platforms such as Azure, AWS, or Google

* Experience with MITRE ATT&CK

* Experience with Splunk or Splunk Enterprise Security

* Full Scope Clearance

* Ability to demonstrate interpersonal, organizational, writing, communications, and briefing skills

* Ability to effectively use analytical and problem-solving skills

* Provide logical use case development.

* Provide and track requirements to engineering partners.

* Identify gaps in visibility or coverage of cyber defense systems.

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.

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: Salt Lake City, Utah
Type: Contract
Job #3650
Salary: $120,000 Per Hour

Job Title: Lead, Electrical Engineer Power Supply Demand
Job Location: Salt Lake City, Utah
Clearance: No Clearance required
Compensation Range: $125K – $150K

Program Overview:
We are currently seeking a Lead Power Supply Design Engineer to join a growing design team supporting power conversion circuit card development. The ideal candidate will have a strong background in designing low and high voltage, high frequency switch-mode power supplies and will collaborate with senior engineers across disciplines to meet rigorous performance, thermal, emissions, and safety requirements.

Job Responsibilities:

Design AC/DC and DC/DC power converters
Develop power distribution architectures and EMI filters
Analyze analog/power circuits for stability, efficiency, and performance
Write specifications and develop test approaches for circuit designs
Select components for discrete designs or modules for system integration
Create schematics and support printed circuit board (PCB) layout
Conduct peer design reviews and oversee design verification testing
Perform analog and power testing in a lab environment
Collaborate with cross-functional teams including digital, RF, mechanical, and systems engineers

Required Skills:

Bachelor’s degree and a minimum of 9 years of relevant power supply/electrical engineering experience; OR
Master’s degree and a minimum of 7 years of relevant experience; OR
12 years of equivalent work experience in lieu of a degree

Preferred Skills:

Proficiency in power conversion design and analog circuit simulation
Experience with control loop stabilization and high-frequency magnetics
Hands-on knowledge of AC/DC & DC/DC power converters
Power analysis with MathCad, Excel, or equivalent tools
Experience using SIMPLIS and SPICE for electrical simulations
Proficiency with CAD tools for schematic entry and PCB layout (Mentor Graphics preferred)
Familiarity with MIL-STD-704, MIL-STD-1275, MIL-STD-1399, and MIL-STD-461
Strong communication skills and ability to collaborate in high-performance teams
Willingness to work overtime and weekends as needed
Experience with standard lab test equipment
Prior work in rugged or military-grade electronics environments
U.S. Department of Defense security clearance eligibility is preferred
Proficiency in MS Word, Excel, PowerPoint, and Visio Software
Design experience in military or other ruggedized industries