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.

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 *

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:

Position Desired Skills:

Title: Software Engineer
Location: Chantilly, VA

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

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

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

 

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.

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 *

Core Tasks:

Requirements:

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.

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 *
 

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:

Required Experience.

Desired Experience:

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

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

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

Key Responsibilities:

Qualifications

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.

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 *

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:

Required Education:

Individual Capabilities Required:

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:

Required Qualifications:

Preferred Qualifications:

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

*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 *

Job Responsibilities:

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).

​​​​​​​

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.

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

We are 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

Title: Network Engineer/Analyst
Location: Herndon, VA

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

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

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.

Title: Cyber Technical Analyst Advisor
Location: Chantilly, VA

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

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

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

Tasks:
Cyber intrusion investigations
Review and analysis of cyber security trends
Technical solutioning

Requirements:
Strong understanding of cybersecurity
Familiarity with custom toolsets
Understanding of computer networks and vulnerabilities analysis
Previous experience with AI/ML solutioning
Demonstrated ability to create custom scripts
Creation of data visualizations

Key Skills:
Strong understanding of cybersecurity principles and ability to provide assessments.
Understanding of ML/AI processes and be able to evaluate the efficiency of models
Understanding of networks and various networking architectures
Scripting ability to be able to manipulate and parse through unstructured and structured datasets (Powershell, Python, SQL)
Proficiency in visualizations
Familiarity with sponsor tools
Desired Skills:
Ability to convey technical topics or conclusions to audiences of varying technical literacy
Previous experience analyzing Advanced Persistent Threat (APT) actors
Experience working with AI/ML processes and assessing model efficiency

Education Requirement

 Experience Requirement

​​​​​​​

Title: Baseband Savvy CNO Developer
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.

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 *

Overview:
Seeking a highly skilled and motivated Baseband-Savvy Computer Network Operations (CNO) Developer to support the design, development, and enhancement of cyber capabilities in support of mobile device exploitation and vulnerability research. The successful candidate will join a high-performing team of cyber professionals and engineers developing next-generation solutions for Offensive and Defensive Cyber Operations (OCO/DCO), with a specific focus on mobile platforms and baseband firmware.


Core Tasks:

Required Qualifications:

Preferred Qualifications:

Title: Network Engineer
Location: Annapolis Junction, MD
Compensation Range: $205 – $225K
*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 *

Core Tasks:

Requirements:

Preferred:

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

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

KEY RESPONSIBILITIES

EDUCATION AND EXPERIENCE

REQUIRED QUALIFICATIONS

DESIRED QUALIFICATIONS

 

Title: Data Engineer

Location: Herndon, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Company Overview:

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

Network Engineer
Reston, VA

Position Overview:
We’re looking for a skilled Network Engineer with virtualization experience to join our team! In this role, you will play a crucial part in designing, implementing, and building our low-side network services that support the program. The successful candidate will possess a strong understanding of network architecture, networking protocols, virtualization technologies and security measures essential for maintaining high availability and performance in hybrid cloud environments and will collaborate with various teams to ensure seamless integration of cloud services, optimizing network infrastructure to support application performance and reliability. You will troubleshoot and resolve network-related issues, leveraging your expertise to enhance operational efficiency and support business objectives. This position requires a proactive individual who can stay current with network industry trends and emerging technologies. We value collaboration and innovation, and we're excited to have someone who enjoys problem-solving and is eager to learn new technologies.

Responsibilities
• Design and implement a secure networking solution currently on-prem to a hybrid version built on AWS.
• Monitor network performance and troubleshoot issues as they arise.
• Configure and maintain routers, switches, and other networking hardware.
• Ensure network security through effective management of firewalls and VPNs.
• Collaborate with the “in house” development teams to integrate new technologies into the existing network.
• Collaborate with ISSEs to establish best practices for network security.
• Monitor network performance and troubleshoot connectivity issues across the environment.
• Implement robust security measures to protect sensitive data and ensure compliance with regulatory standards.
• Prepare documentation for network configurations and procedures.
• Conduct regular assessments, audits and scans of network systems to enhance security and performance.
• Develop and maintain network documentation, including diagrams and operational procedures.
• Stay current with industry trends and emerging technologies in cloud & networking.
• Champion automated solutions for network monitoring and management.

Required Skills:
• Bachelor's Degree in Computer Science, Information Technology, or a related field.
• Proven experience working with hybrid networks, commercial cloud platforms, or similar role, particularly in the Defense & Intelligence Communities.
• Experience with scripting languages such as Python or Bash for automation.
• Strong knowledge of at least one of the providers (AWS, Azure, Google Cloud Platform, etc)
• Familiarity with networking protocols and technologies, including TCP/IP, VPNs, VPCs and firewall technologies, both on-prem and virtual.
• Excellent troubleshooting, problem-solving skills and the ability to work collaboratively in a team-oriented environment.
• Strong communication skills and the ability to work independently
• TS/SCI

Desired Skills:
• Experience with network monitoring tools.
• Familiarity with virtualization technologies and SDN concepts.
• AWS Certified Solutions Architect, CompTIA Network+, or equivalent certification is highly desirable.

Title: Intelligence Analyst 2
Location: Vienna, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

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

Job Description
We are looking for a Junior Intelligence Analyst ready to be a member of a dynamic and fast paced intel analysis program for a federal agency supporting the US Government’s threat watchlisting and screening mission. As a Junior Intelligence Analyst, you will provide embedded analysis and reach back support to a federal agency and their partners. You will provide multi-source intelligence analysis and fusion that integrates existing national-level products and databases to define patterns of operations. As required, you will interact directly with government leadership and deployed intelligence consumers during the development of intelligence products and ongoing screening operations to meet intelligence requirements across the watchlist enterprise. Duties may include the processing and verification of national security threat actor nominations, data integrity/quality control, encounter management, information sharing, and/or multiple discipline intelligence analysis.
Primary Responsibilities:

Basic Qualifications:

Preferred Qualifications:

​​​​​​​

Title: Intelligence Analyst 4
Location: Vienna, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

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

Job Description
We are looking for a Senior Intelligence Analyst ready to be a member of a dynamic and fast paced intel analysis program for a federal agency supporting the US Government’s threat watchlisting and screening mission. As a Senior Intelligence Analyst, you will provide embedded analysis and reach back support to a federal agency and their partners. You will provide multi-source intelligence analysis and fusion that integrates existing national-level products and databases to define patterns of operations. As required, you will interact directly with government leadership and deployed intelligence consumers during the development of intelligence products and ongoing screening operations to meet intelligence requirements across the watchlist enterprise. Duties may include the processing and verification of national security threat actor nominations, data integrity/quality control, encounter management, information sharing, and/or multiple discipline intelligence analysis.
Primary Responsibilities:

Basic Qualifications:

Preferred Qualifications:

Title: Intelligence Analyst 3
Location: Vienna, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

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

Job Description
We are looking for a Mid Level Intelligence Analyst ready to be a member of a dynamic and fast paced intel analysis program for a federal agency supporting the US Government’s threat watchlisting and screening mission. As a Mid Level Intelligence Analyst, you will provide embedded analysis and reach back support to a federal agency and their partners. You will provide multi-source intelligence analysis and fusion that integrates existing national-level products and databases to define patterns of operations. As required, you will interact directly with government leadership and deployed intelligence consumers during the development of intelligence products and ongoing screening operations to meet intelligence requirements across the watchlist enterprise. Duties may include the processing and verification of national security threat actor nominations, data integrity/quality control, encounter management, information sharing, and/or multiple discipline intelligence analysis.
Primary Responsibilities:

Basic Qualifications:

Preferred Qualifications:

Title: Intelligence Analyst SME 3
Location: Vienna, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government.  Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission.  Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems.  If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

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

Job Description
We are looking for a Senior Intelligence Analyst Subject Matter Expert ready to be a member of a dynamic and fast paced Intelligence Analysis program. The successful Analyst provides intelligence support to a federal agency in support of the US Government’s threat watchlisting and screening mission. Duties may include the processing and verification of national security threat actor nominations, data integrity/quality control, encounter management, information sharing, and/or multiple discipline intelligence analysis.
The Senior Intelligence Analyst SME analyzes highly complex problems, applies expert level analytic tradecraft, and uses conceptualizing, reasoning and interpretation to identify solutions. A successful Senior Intelligence Analyst SME must have good interpersonal skills and work well with others, possess excellent written and verbal communication skills, and have the ability to engage with senior executive leadership (internally or client) regarding matters of strategic importance.
Primary Responsibilities:

Basic Qualifications:

Preferred Qualifications:

 

Title: .NET Developer
Location: Chantilly, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

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

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

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

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

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

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

Title: Interpreter
Location: Germantown, MD

*Clearance: *Active Secret or Top Secret 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 *

Job Summary:
Cornerstone Defense is looking for a Secret or Top Secret cleared individual to perform interpretation/translation in support of ROK military CWMD capability development. Our team conducts military capability studies and provides train, advise, and equip services on behalf of a USG client.  We have a PMO in Seoul but work throughout ROK. Interpretation services would include consecutive (simultaneous capability preferred) interpretation at appropriate venues during workshops, briefings, and engagements to combined audiences including up to general officers and civilian representatives from ROK MND.
 
Job Responsibilities:

Title: Sr. Database Adminstrator – Postgres, MySQL, and Oracle Database
Location: Annapolis Junction
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 *

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

Qualifications:

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

Required Skills:

Preferred Skills/Experience:

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

Required Skills:

Title: UX Designer
Location: Annapolis Junction, MD
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Compensation Range: $145k – $160k

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:
Responsible for leading the plan, design and development activities to create the user experience for devices, tools and systems. Responsible for establishing interactive conventions, assisting in gathering user requirements, mocking-up user experiences, participating in trade-off discussions with development teams and subject matter experts, analyzing tool sets, creating screen mock-ups and helping customers to imagine new kinds of interactive techniques and technologies. Applies visualization and screen design expertise to create a successful user experience.

The Level 2 User Experience Designer shall possess the following capabilities:

Qualifications:

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.

Company Overview:

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

 

As an Entry-Level Technical Recruiter at Cornerstone Defense, you’ll have the opportunity to jumpstart your career by building relationships, curating talent pipelines, and learning the ins and outs of the recruiting process. We’re seeking an energetic, motivated individual who’s eager to explore the fast-paced world of government contracting. In this role, you’ll be mentored by industry experts, gaining hands-on experience and invaluable insights into technical recruiting, resource management, and the unique demands of defense contracting.

 

You’ll work closely with our Service Delivery team, connecting top-tier talent with mission-critical roles that support national security. Your efforts will directly influence our growth, culture, and success in delivering cutting-edge solutions to complex challenges.

 

Why Cornerstone Defense?

 

What You’ll Do:

 

Who You Are:

Ready to Take the Next Step?

If you’re looking for more than just a job – if you want to build a career in a company where you’re valued, supported, and pushed to grow – Cornerstone Defense is where you belong. Apply today to join a team that’s making a real difference.

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

Responsibilities:

Basic Qualifications:

Preferred Qualifications:

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

Responsibilities:

Requirements:

Preferred Qualifications:

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

Key Role:

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

 

Basic Qualifications:

 

Additional Qualifications:

Mechanical Engineering Specialist, Senior

Key Role:

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

 

Basic Qualifications:

 

Additional Qualifications:

Electrical Engineering Specialist, Senior
Location: Warrenton, VA

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

Key Role: 

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

Basic Qualifications:   

 

Additional Qualifications:   

 

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

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Compensation Range: $175k – $195k

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

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

TS/SCI w/ FSP required.
 
Qualifications:

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 *
 

Information System Security Manager
Clearance: TS/SCI with Polygraph
Reston, VA

Supporting the Most Exciting and Meaningful Missions in the World

 Cyber and Information Security Specialist (INFOSEC) perform functions in support of the directorate’s Information System Security Manager (ISSM) and deliver outcomes as follows:
 

 

Qualifications

Education: Degree in Network Engineering, Systems Engineering, Information Technology, or related field (e.g., General Engineering, Computer Engineering, Electrical Engineering, Computer Science, Computer Forensics, Cyber Security, Software Engineering, Information Assurance, or Computer Security). Note that 18 semester hours of military training/coursework in networking, computer science, or cyber topics is equivalent to an Associate degree.
Relevant Experience: Relevant experience must be in computer or information systems design/development/analysis.  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) will be considered towards the relevant experience requirement (i.e., 24-week JCAC course will count as 6 months of experience). In some cases, foreign language proficiency may also be used to satisfy experience requirements; recent Interagency language Roundtable (ILR) scores are required to substantiate your proficiency level.

 

Qualifications

Education: Degree in Network Engineering, Systems Engineering, Information Technology, or related field (e.g., General Engineering, Computer Engineering, Electrical Engineering, Computer Science, Computer Forensics, Cyber Security, Software Engineering, Information Assurance, or Computer Security). Note that 18 semester hours of military training/coursework in networking, computer science, or cyber topics is equivalent to an Associate degree.
Relevant Experience: Relevant experience must be in computer or information systems design/development/analysis.  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) will be considered towards the relevant experience requirement (i.e., 24-week JCAC course will count as 6 months of experience). In some cases, foreign language proficiency may also be used to satisfy experience requirements; recent Interagency language Roundtable (ILR) scores are required to substantiate your proficiency level.

Digital Network Exploitation Analyst

 

Qualifications

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.

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). 

 

 

Qualifications

Education: Degree in Network Engineering, Systems Engineering, Information Technology, or related field (e.g., General Engineering, Computer Engineering, Electrical Engineering, Computer Science, Computer Forensics, Cyber Security, Software Engineering, Information Assurance, or Computer Security). Up to 18 semester hours of military training/coursework in networking, computer science, or cyber topics is equivalent to an Associate degree.
Experience: Relevant experience must be in computer or information systems design/development, programming, information/cyber/network security, vulnerability analysis, penetration testing, computer forensics, information assurance, and/or systems engineering.  Additionally, must have experience in network or system administration.  If not credited toward education requirements, completion of military training in a relevant area such as JCAC (Joint Cyber Analysis Course), Undergraduate Cyber Training (UCT), Network Warfare Bridge Course (NWBC)/Intermediate Network Warfare Training (INWT), Cyber Defense Operations will be considered towards relevant experience requirement (i.e., 20- to 24-week courses will count as 6 months of experience; 10-14 weeks will count as 3 months of experience). In some cases, foreign language proficiency may also be used to satisfy experience requirements; recent Interagency language Roundtable (ILR) scores are required to substantiate your proficiency level. The total of all experience equivalencies is capped at half of the required years of experience.

Target Digital Network Analyst

 

Target Digital Network Analyst

 

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

Education:
High School Diploma/GED + 12 Years 
Associate Degree + 10 Years 
Bachelor's Degree + 8 Years 
Master's Degree + 6 Years 
PhD + 4 Years

Description:

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

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