Cornerstone Defense | Technically Innovative Solutions

Location: Bethesda, Maryland
Type: Contract
Job #3978

Title: Senior ServiceNow Requirements Engineer
Location: Bethesda, MD
Compensation Range: $175k 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 *

Seeking an experienced ServiceNow (SNOW) Requirements Engineer to support our IC customer. The ideal candidate will serve as a critical bridge between stakeholders and technical teams, with responsibilities focused on collecting, analyzing, and refining requirements for SNOW applications and workflows.

Given the nature of this role, the selected candidate will regularly interface with very senior IC staff and cross-functional contractors supporting separate contracts. This requires a calm, confident communication style to engage effectively with diverse stakeholders and enable mission success.

As a Requirements Engineer, you will play a pivotal role in ensuring the successful execution of IT and SNOW workflow projects that are foundational to the IC Customer’s mission. By using your analytical expertise and confident communication style, you will directly contribute to the development of secure, scalable, and impactful solutions. Join a high-performing team where your skills will drive innovation and enable mission success.

Primary Responsibilities:

Requirements Gathering & Analysis:

Partner with senior IC leadership and stakeholders to collect, refine, and prioritize requirements for SNOW applications and workflows.

Translate customer objectives into detailed, actionable requirements while maintaining alignment with mission priorities and system capabilities.

Ensure requirements accurately capture stakeholder needs and are feasible within the technical and operational environment.

Collaboration with Stakeholders:

Work closely with IC staff, developers, and other contractors to clarify requirements and address gaps in design and implementation.

Facilitate discussions and coordination between teams to ensure that requirements are clearly communicated and understood across contracts and workstreams.

Participate in technical exchange meetings and workshops to refine requirements in alignment with SNOW platform capabilities and best practices.

Documentation and Communication:

Document requirements, use cases, process flows, and acceptance criteria in a clear and structured format to guide development and testing teams.

Provide regular updates to IC leadership on requirements status, risks, and impacts, ensuring decisions are informed by accurate and actionable insights.

Actively support change management processes, documenting updates or refinements to requirements based on stakeholder feedback and evolving needs.

Cross-Functional Leadership:

Interface confidently with senior IC officials, ensuring requirements workflows are driven by strategic priorities and communicated in a professional, poised manner.

Collaborate across multiple contractor teams, building relationships that foster open communication and alignment toward shared mission goals.

Work Environment:

Collaboration: The role requires daily interaction with senior IC staff and integration with cross-functional contractor teams, where clear communication and strong interpersonal skills are essential.

Qualifications

Basic Qualifications:

TS/SCI with Polygraph is REQUIRED

Experience & Skills:

Minimum of 8 years of relevant experience, with proven expertise in collecting and refining technical requirements for SNOW applications and workflows.

14+ years of professional experiance

Strong understanding of SNOW platform capabilities, including workflows, applications, and integrations.

Experience operating in dynamic team environments, collaborating with both technical and non-technical stakeholders.

Interpersonal & Communication Skills:

Confidence working with very senior leadership and an ability to communicate clearly, calmly, and effectively across diverse audiences.

Demonstrated ability to navigate and collaborate across multiple contractor teams, fostering alignment in cross-functional environments.

Strong analytical and interpersonal skills for bridging the gap between technical teams and mission-driven stakeholders.

Preferred Qualifications:

Familiarity with Intelligence Community (IC) environments, workflows, and directives.

Experience working in agile or hybrid development environments, including collaboration with Scrum teams.

Certification in ServiceNow frameworks or business analysis methodologies such as Certified Application Specialist or Certified Business Analyst Professional (CBAP).

Capability in creating visual requirements documentation (e.g., process models, data flow diagrams) using tools like Microsoft Visio, Lucidchart, or other standard platforms.

Location: Bethesda, Maryland
Type: Contract
Job #3977

Title: Senior ServiceNow Test Engineer
Location: Bethesda, MD
Compensation Range: $215k 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.

Seeking a highly skilled ServiceNow (SNOW) Tester to support the IC Customer. The selected candidate will play a key role in testing and validating SNOW applications, workflows, and solutions to ensure seamless functionality and mission-critical performance.

This role requires hands-on experience with automated testing methods for SNOW platforms, deep attention to detail, and the ability to collaborate effectively with cross-contracting teams supporting parallel initiatives. The ability to work in a dynamic environment and maintain strong stakeholder relationships is essential.

Primary Responsibilities:

Conduct comprehensive testing of SNOW applications and workflows to identify, document, and escalate bugs and issues across all SNOW modules and functionalities.

Develop and execute automated testing scripts for SNOW platforms, ensuring consistent performance and minimizing manual testing cycles.

Validate SNOW design and development solutions, ensuring workflows adhere to specified requirements and align with organizational best practices.

Process Improvement & Quality Assurance:

Define and refine testing procedures, approaches, and best practices to optimize testing processes and improve reliability and functionality of workflows.

Collaborate closely with developers and stakeholders to confirm issue resolution and retest systems to ensure fixes are implemented effectively.

Track and report test results, providing metrics and insights directly to leadership to guide improvements and upgrades to the SNOW platform.

Collaboration Across Teams:

Work closely with contractors on multiple contracts and across teams to ensure seamless testing integration for interconnected systems and workflows.

Participate in technical exchange meetings, reviews, and design workshops to ensure testing aligns with program objectives and stakeholder expectations.

Build relationships with cross-functional teams, administrators, and leadership to ensure transparency, communication, and efficient testing processes.

Qualifications
⁠⁠⁠⁠⁠⁠⁠
Basic Qualifications:
TS/SCI with Polygraph is REQUIRED

Experience & Skills:

Minimum of 13 years of professional experience, with demonstrated expertise in testing SNOW applications and workflows.
Strong experience with automated testing tools and methodologies, particularly for SNOW platforms.
Exceptional problem-solving skills, with attention to detail when identifying, documenting, and tracking software defects.
Interpersonal & Teamwork Skills:
Ability to collaborate across contracting teams, fostering cohesion while contributing to the success of parallel initiatives.
Adept at explaining complex testing procedures and results to non-technical stakeholders and leadership.
A proactive communicator who can anticipate challenges and navigate dynamic workflows across multiple teams.

Preferred Qualifications:

Familiarity with Intelligence Community (IC) environments, including workflows and mission-critical IT systems.
Strong understanding of SNOW modules and capabilities, including workflow automation and integration best practices.
Experience using testing management tools such as Automated Test Framework, or other tools suited to automated SNOW application testing.
Relevant certifications in SNOW or testing-related areas, such as Certified Application Specialist (SNOW) or ISTQB Foundation Level Certification in Software Testing.

Location: Bethesda, Maryland
Type: Contract
Job #3976

Title: Senior ServiceNow Scrum Master
Location: Bethesda, MD
Compensation Range: $215k 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.

Seeking a highly experienced Senior ServiceNow Scrum Master to support the IC customer. In this role, the candidate will deliver agile project facilitation and process leadership for efforts utilizing the ServiceNow (SNOW) platform. The selected Scrum Master will coordinate with senior IC leadership, other contractors, and cross-functional teams to ensure the delivery of high-quality solutions aligned with the customer’s mission objectives.

This position requires a professional with strong interpersonal skills, the ability to develop relationships with very senior leadership, and the skill to navigate and collaborate across contracting teams and enterprise stakeholders.

As a Senior SNOW Scrum Master, you will play a critical role in enabling and enhancing IC mission capabilities by blending agile principles, SNOW expertise, and leadership to deliver impactful, scalable solutions. Join a dynamic, high-performing environment where your contributions will make a tangible and lasting impact.

Primary Responsibilities:

Scrum Facilitation & Agile Leadership:

Act as the Scrum Master for projects using the SNOW platform, enabling agile processes and ensuring adherence to Scrum principles, roles, and best practices.

Serve as a key facilitator for Scrum ceremonies, including sprint planning, daily stand-ups, sprint reviews, retrospectives, and backlog refinement sessions.

Optimize team performance, measuring velocity and managing team capacity to deliver defined goals and milestones efficiently.

Collaboration with Leadership & Stakeholders:

Work closely with senior IC leadership to ensure project alignment with organizational mission priorities and strategic objectives.

Collaborate across contracting teams and project stakeholders to facilitate communication, resolve conflicts, and ensure cooperation between teams supporting other contracts.

Project & Risk Management:

Ensure projects meet scope, schedule, and performance objectives by managing risks, identifying potential blockers, and recommending mitigation strategies.

Maintain consistent communication with senior leadership, providing regular updates, project status reports, and metrics to track progress and identify areas for improvement.

SNOW Expertise:

Guide teams in implementing and expanding ServiceNow functionalities, ensuring the platform supports mission priorities effectively.

Coordinate updates, enhancements, and new capabilities in the SNOW environment by synchronizing with technical teams and ODNI leadership.

Mentorship and Team Empowerment:

Act as a mentor and servant leader, fostering a culture of accountability, transparency, and collaboration among team members.

Provide coaching on agile principles and practices to team members, ensuring alignment and consistency across workstreams.

Collaboration:

This role involves daily interaction with senior leadership and integrated contractor teams, requiring strong stakeholder management and communication skills.

Qualifications
Basic Qualifications:

TS/SCI with Polygraph is REQUIRED.
Minimum of 13 years of relevant professional experience, with at least 5 years operating as a Scrum Master in an agile development environment.
Bachelor’s degree in a related field (e.g., Information Technology, Engineering, Business) or equivalent experience.
Agile & Scrum Skills:

Proven expertise in agile coaching, servant leadership, and Scrum Master roles within complex, dynamic environments.
Ability to manage SNOW VTB boards (or equivalent tools) for tracking sprint progress, managing team workloads, and reporting metrics.
Interpersonal & Leadership Skills:

Demonstrated ability to interface effectively with senior leadership, including IC executives, by presenting concise updates and facilitating strategic discussions.
Exceptional communication skills to collaborate across multi-contractor and cross-functional teams, resolving conflicts and aligning stakeholders.
A proactive mindset with the ability to anticipate challenges, communicate risks, and align team efforts with mission goals.
Preferred Qualifications:

Agile certifications such as Certified Scrum Master (CSM), Advanced Certified Scrum Master (A-CSM), or SAFe Scrum Master (SSM).
Familiarity with Intelligence Community (IC) environments, directives, and mission workflows.
Experience working in a consultative role across multiple contractor teams and understanding diverse enterprise priorities.

Location: Dulles, Virginia
Type: Contract
Job #3949

Title: Systems Engineer (Voice)
Location: Dulles, 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.

Required Education, Experience, & Skills:
We are actively seeking Systems Engineers with a minimum of 3 years' experience. Undergraduate or graduate degree in computer science or computer engineering. Specific skills may include the following:
•   Work in an enterprise IT environment with specific tasks related to Voice
•   Collaborate with network engineering and other telecom engineers in integration activities involving telephony or call center
•   Assist in the design, testing, and deployment of new voice infrastructure
•   Support implementation of next-generation voice technologies
•   Participate in the system security accreditation process
•   Provide certificate management support for secure systems
•   Assist with system upgrades, patching, and configuration
•   Support new site voice system standups
•   Support call center technology deployments, user training, and transition planning
•   Contribute to call routing and trunking design within enterprise voice platforms
•   Attend meetings with internal teams and clients to gather and understand voice system requirements
•   Monitor compliance with established standards, policies, and procedures
•   Gain hands-on experience with secure voice devices (e.g., VoIP phones, STEs, Viper) and infrastructure components (e.g., PBXs, encryption devices, call management servers)
•   Learn to provide Tier 4 engineering support under supervision
•   Learn and support platforms such as Skype for Business, Avaya Communication Manager, and other enterprise call center technologies
Preferred Education, Experience, & Skills:
•   Linux
•   SIP signaling and call flows
•   Secure Real-Time Transport Protocol
•   SIP
•   TCP/IP
•   H.323
•   DNS
•   DHCP
•   RTP
Certifications
•   MCSE certification
•   A+ certification
•   Network+ certification
•   CCNA, CCNP, ITIL, CCIE, HP, CCVP, CCDP, CATE, R&S
•   Cisco Voice certifications
•   Juniper certifications

Location: Bethesda, Maryland
Type: Contract
Job #3914

Title: Senior Technical Writer
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.

Seeking a Senior Technical Writer with experience supporting Intelligence customers. This position will translate highly technical documents for audiences that include government customers, legal general council, and congressional support staff. This position will require a background in Systems and or Data Engineering in order to successfully translate requirements, policy and other highly technical documentation as required.

Responsibilities include:

Create and maintain technical documentation.
Ensure all content meets high-quality standards.
Review and revise technical documents for accuracy and clarity.
Maintain consistency across all documentation.
Apply proper grammar and technical writing best practices.
Engage in stakeholder management and work with multiple programs and teams.
Gather information from subject matter experts.
Coordinate with stakeholders to ensure documentation meets project requirements.
Regularly review and update existing documentation.
Implement version control for documentation.
Archive outdated materials and maintain a documentation library.
Ensure all documentation adheres to organizational standards.
Stay current with industry best practices for technical writing.
Apply consistent formatting and style guidelines across all documents.

Deliverables will include:

User Manuals, troubleshooting guides, release notes, technical specifications, process documentation, end-user training guides, system administrator manuals, quick reference guides, video tutorials scripts, online help content, technical requirement documents, system design documents, project status reports, change management documentation, technical brochures, white papers, product datasheets, FAQ's, and knowledge base articles.

Qualifications

Active TS/SCI with Poly is REQUIRED
Bachelor's degree and 8+ years of related experience
3-5 years’ experience within an IC Agency
Strong technical writing and editing skills
Background in Systems Engineering, Data Engineering or similar
Ability to translate complex technical information into clear, user-friendly content
Experience with documentation tools and version control systems
Strong attention to detail and organization skills
Excellent communication and interpersonal skills

Location: Bethesda, Maryland
Type: Contract
Job #3913

Position – Zero Trust Architecture Specialist
Work Location – Bethesda, MD
Security Clearance – TS/SCI with CI Polygraph

Zero Trust Architecture Specialist
Seeking a highly experienced Zero Trust Architecture (ZTA) Specialist to support a mission-critical customer in the Intelligence Community (IC). This position requires at least 15 years of relevant experience in systems engineering and architecture or related IT fields, with demonstrated expertise in Zero Trust principles and implementation. This position will play a pivotal role in defining, designing, and coordinating the transition of current architectures into zero trust-enabled environments across the enterprise and non-enterprise services/systems. The role requires an expert-level understanding of secure systems architecture, IC directives, and modern IT security paradigms.

While the ideal candidate is a generalist with broad expertise across ZTA principles and IC-related IT ecosystems, the customer is also open to specialists with deep knowledge in one or more relevant areas.

Primary Responsibilities:

Architectural Design and Strategy:

Document architectural rules and develop clear criteria for system and service compliance with zero trust principles.
Diagram interim and future state architectures, capturing transition paths from current architectures to zero trust-enabled environments.
Define and effectively communicate integration expectations for all IT services across evolving architectures.

Design Patterns and Standards Development:

Create and maintain design patterns to guide enterprise and non-enterprise systems in achieving compliance with zero trust specifications.
Align all work with IC protocols, directives, and initiatives, ensuring consistency with broader government mandates.

IT Roadmap and Implementation Planning:

Develop and refine roadmaps for IT implementation of zero trust across global enterprises, including classified and unclassified multi-cloud/multi-fabric landscapes.
Integrate IT stack technologies, ensuring secure, scalable, and effective functionality within a global operational environment.

Zero Trust Expertise and Governance:

Apply expert knowledge in identity, authentication, and authorization technologies to advance zero trust principles.
Work with secure cloud architectures across multiple vendors and cloud fabrics, ensuring environments meet compliance and operational requirements.

Stakeholder Communication and Leadership:

Engage with senior stakeholders across the IC and DoD to communicate architectural decisions, integration plans, and compliance mandates.
Brief senior forums and provide subject matter expertise on EO 14028, NSM-8, NIST standards (e.g., 800-53, CNSSI 1253, ICD 503), and other related directives.
Build trust and foster collaboration across IC partners and technical teams to align zero trust implementations with mission objectives.

Generalist vs. Specialist Considerations:

The customer prefers a generalist with broad expertise across ZTA and related areas but is willing to recruit a specialist who can bring significant depth in one or more core areas, such as identity management, secure cloud architecture, or IT stack integration.

Qualifications

Active TS/SCI with Poly is REQUIRED.
15+ years of experience in systems engineering and architecture, particularly in IC and DoD-related environments.
Extensive knowledge of zero trust architecture, including National Security System (NSS) and DoD reference architectures.
Familiarity with IC directives, policies, and standards, such as EO 14028, NSM-8, ICD 503, NIST 800-53, CNSSI 1253, and related frameworks.
Demonstrated ability to integrate IT stack technologies across global enterprise cyber systems with an emphasis on secure implementations.
Deep expertise in secure cloud architecture and multi-cloud/multi-fabric landscapes (classified/unclassified environments).
Strong knowledge of identity, authentication, and authorization technologies and frameworks central to zero trust principles.
Proficiency in developing IT roadmaps and implementation plans for mission-critical systems.
Demonstrated ability to work across IT domains, bringing together architecture, security, and technical integration.
Proven ability to brief senior IC and DoD forums, providing clear and concise updates, risk assessments, and strategic guidance.
Experience partnering across IC stakeholders, fostering collaboration and alignment of technical and operational initiatives.

Preferred Qualifications:

While not mandatory, expertise in any of the following areas is highly desirable:

Proven experience working in classified environments and bridging the gap between enterprise and mission-specific IT landscapes.
Certifications in systems architecture and security, such as CISSP, CCSP, or AWS Certified Solutions Architect.
Knowledge of emerging trends and tools in zero trust architecture and secure systems development.

Location: Bethesda, Maryland
Type: Contract
Job #3906

Position – Data & AI Champion
Work Location – Bethesda, MD
Security Clearance – TS/SCI with CI Polygraph

Data & AI Champion-

Seeking a proactive and detail-oriented Program Support Team Member to support the Chief AI Officer and Chief Data Officer (CAIO/CDO) of one of our Intelligence customers. This position focuses on task management, workforce upskilling, and promoting the adoption of Artificial Intelligence (AI) and Data best practices within the ODNI.

The ideal candidate should exhibit strong leadership qualities, take initiative, and demonstrate the ability to guide efforts and collaborate effectively with team members and stakeholders. A strong candidate will have a solid familiarity with AI and Data concepts and a willingness to cultivate technical expertise on the job.

Primary Responsibilities

Task and Deliverable Management:

Assist with managing and coordinating team tasking, ensuring that work products are high-quality, accurate, and presentation-ready for government stakeholders.
Track progress, prioritize tasks, and contribute to meeting deadlines aligned with CAIO/CDO objectives.
Workforce Upskilling and Development:

Support and champion the design and implementation of plans to upskill the customer workforce on Artificial Intelligence and Data-related capabilities.
Research and recommend training resources, learning opportunities, and strategies for technical skill enhancement.
Workforce Adoption of AI and Data Practices:

Contribute to the development and execution of strategies to facilitate workforce adoption of AI tools, technologies, and Data best practices.
Work collaboratively to promote workforce engagement and successful integration of AI and Data practices into customer operations.
Collaboration and Team Engagement:

Serve as a reliable and supportive teammate, offering guidance and ensuring alignment of efforts with broader mission objectives.
Exhibit strong collaboration and interpersonal skills to foster effective communication and teamwork.
Stakeholder Support:

Collaborate with government customers and other stakeholders to ensure deliverables and initiatives align with customer mission needs.
Assist in preparing briefings, updates, and documentation as required by customer leadership.

Qualifications:

Active TS/SCI with Poly is Required.
Bachelor’s degree with 8+ years of relevant experience, Associate’s degree with 10+ years of relevant experience, or Master’s degree with 6+ years of relevant experience.
Strong task management and organizational skills, including attention to detail and delivering high-quality work.
Familiarity with AI and Data concepts (deeper expertise can be developed on the job but must be familiar with various LLMs and their strengths and capabilities as well as a strong grasp of data analytics).
Excellent interpersonal and communication skills to collaborate effectively with stakeholders and contribute to team success.
Proven ability to take initiative, demonstrate leadership qualities, and provide informal guidance within a team setting.

Preferred Qualifications:

Experience working in a government or Intelligence Community (IC) setting.
Familiarity with organizational change management and workforce transformation initiatives.
Ability to learn new technical concepts, such as AI tools and data frameworks, as part of on-the-job development.
Certifications in project management (e.g., PMP) or related disciplines are a plus.
Experience working with senior government personnel.

Location: Bethesda, Maryland
Type: Contract
Job #3905

Position – AI Data Management Specialist
Work Location – Bethesda, MD
Security Clearance – TS/SCI with CI Polygraph

Seeking an experienced and skilled AI Data Management Specialist to support the Chief AI Officer and Chief Data Officer (CAIO/CDO) at one of our Intelligence customers. The ideal candidate will have a solid foundation in data management, including practical and strategic expertise across the data lifecycle, data protection, and stakeholder coordination. In this role, you will engage with technical and non-technical senior government data managers to develop, implement, and refine their data management strategies while ensuring alignment with best practices in data protection, privacy, and civil liberties.

Familiarity with AI concepts and vectorization as it relates to AI is required, and knowledge of zero trust principles, and data architecture is highly desirable to enhance your contributions to this critical mission.

Primary Responsibilities

Data Lifecycle Management:

Provide expertise in practical and strategic aspects of the data lifecycle, including data collection, storage, usage, sharing, and archival/disposal.
Guide senior government stakeholders in the development and execution of comprehensive data management plans aligned with mission goals and compliance requirements.
Data Protection and Governance:

Deliver practical and strategic guidance on data protection, addressing risks related to data spills, personal information security, and civil liberties.
Ensure compliance with data protection policies, laws, and standards, and promote best practices to safeguard sensitive information and preserve privacy.
Stakeholder Coordination:

Act as a critical liaison, working directly with senior government data managers and technical teams to bridge technical and non-technical perspectives.
Facilitate communication and understanding of data management priorities, challenges, and solutions.
AI and Emerging Technologies:

Apply a foundational understanding of AI to advise on data strategies that enable AI implementation and clear adoption paths.
Contribute to discussions and planning related to advanced concepts such as vectorization in AI and data-driven solutions.
Strategic Recommendations:

Support senior leadership by identifying and addressing gaps in data infrastructure, strategy, and implementation.
Advise on policies and practices related to zero trust architecture, data architecture, and cross-organizational data-sharing initiatives.

Qualifications

Active TS/SCI with Poly is required.
Bachelor’s degree with 8+ years of relevant experience, Associate’s degree with 10+ years of relevant experience, or Master’s degree with 6+ years of relevant experience.
Solid background in data management, with a firm, practical, and strategic understanding of the data lifecycle and its application in government or enterprise environments.
Understanding of vectorization in AI and its relationship to data usage and analytics.
Strong expertise in data protection, especially regarding issues such as data spills, safeguarding personal information, and addressing civil liberties.
Ability to coordinate with senior technical and non-technical stakeholders, including government senior data managers, to align data management initiatives with organizational priorities.
Familiarity with AI concepts and their implications for data usage and management.

Preferred Qualifications:

Knowledge or experience with zero trust architecture principles.
Expertise in data architecture design, principles, and governance, with the ability to speak confidently about its implications for strategy and implementation.
Experience working for or with Intelligence Community (IC) stakeholders or other government agencies.
Strong communication and interpersonal skills to convey complex technical concepts to diverse audiences.

Type: Contract
Job #3901

Senior Quality Assurance Tester
Tysons Corner, VA
Active TS/SCI with poly

Job Responsibilities:

Perform comprehensive quality assurance testing for mission-critical engineering and data systems deployed in a classified AWS IL6+ environment, ensuring compliance with security and performance standards.
Collaborate with developers, analysts, and cloud engineers to validate data integrity, troubleshoot workflows, and confirm that solutions meet rigorous functional and security requirements.
Design, develop, and execute test plans, scripts, and automation frameworks to verify software functionality, error handling, and system logic across complex data workflows.
Prepare and manage synthetic or obfuscated data sets for testing purposes, ensuring accurate validation of system behavior while maintaining strict data security protocols.
Identify, isolate, and document defects, track resolutions, and verify fixes to maintain high-quality deliverables and operational reliability in classified environments.

Required Skills:

Bachelor's degree ideally in an IT field or equivalent experience
Active TS/SCI + CI Poly
5+ years' experience evaluating and executing testing procedures to ensure that software meets established quality standards
5+ years' experience developing and writing testing scripts, plans, and test automation to ensure that software functions as expected
7+ years' experience in IT
Strong experience preparing complex data sets to test logic, error handling and system workflows, including experience generating synthetic data sets or obfuscating production data sets for use in testing.
Strong experience isolating, reproducing, and tracking defects and verifying fixes
Extensive experience testing applications leveraging cloud services and deployed to classified AWS cloud environments at IL6+

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

Location: Chantilly
Type: Contract
Job #3898

Title: Senior Software Engineer

Location: Chantilly, VA

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

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

Responsibilities:

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

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

Required Qualifications:

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

Desired Qualifications:

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

Location: Dahlgren, Virginia
Type: Contract
Job #3881

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

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

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

Location: Tysons, Virginia
Type: Contract
Job #3872

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

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

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

Required Skills:

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

Location: Chantilly, Virginia
Type: Contract
Job #3869

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

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

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

Location: Reston, Virginia
Type: Contract
Job #3865

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

Company Overview:

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

Business Process Analyst
FSP is a requirement
——

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

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

Job Duties:

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

Required Skills:

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

Desired Skills:

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

Location: Chantilly
Type: Contract
Job #3859

Software Developer – Workflow Automation

Chantilly, VA

Mission: We are looking for a Software Developer who thrives at the intersection of process and code. In this role, you won’t just be “fixing tickets”—you’ll be architecting the digital workflows that keep our mission moving. You will work within a high-velocity team to transform complex functional requirements into elegant, automated business logic.

Required Technical Background:

Languages: JavaScript (Essential), HTML5, CSS3, XML
Primary Platform: ServiceNow (Experience in Appian, Jira Service Management, or Power Automate is highly transferable)
Integration: REST/SOAP APIs,
Frameworks: ITIL Framework

What You’ll Do:

Build & Automate: Develop and maintain end-to-end workflows, custom forms, business logic, and UI policies that streamline enterprise operations.
Collaborate: Work under the guidance of a Technical Team Lead to hit roadmap milestones, while partnering with Functional Analysts to turn “vague ideas” into “unit-tested reality.”
Integrate: Design and implement APIs to ensure our automation platform plays nicely with the rest of the enterprise ecosystem.
Refine: Participate in peer reviews, conduct unit testing, and lead demos to showcase new features to stakeholders.

Required Qualifications:

JavaScript (Angular) Mastery: Strong experience scripting within a workflow automation environment (ServiceNow is preferred, but we value expertise in similar low-code/pro-code platforms).

Type: Contract
Job #3847

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

Job Responsibilities:

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

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

Required Skills:

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

Location: Chantilly, Virginia
Type: Contract
Job #3846

Tech CI Analyst
Chantilly, VA

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

Company Overview:

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

Location: Chantilly, Virginia
Type: Contract
Job #3837

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

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

KEY RESPONSIBILITIES

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

QUALIFICATIONS

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

REQUIRED KNOWLEDGE/SKILLS

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

DESIRED KNOWLEDGE/SKILLS

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

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

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

McLean, VA

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

Supporting the Most Exciting and Meaningful Missions in the World

The PMO request your help in filling a PSO Level 2 position at the Customer’s site in McLean.

The position will support joint effort with DoD.
We are looking for someone with Special Access Program Security Representative (SSR) skillset.
We don’t need a full fledge one. Just someone who has a JADE profile and Account.
The account side is critical.

To fill our Program Security Officer (PSO) opening, the candidate would perform the below according to the SOW:

Perform as a Special Access Program (SAP) Security Representative if required and in coordination with the Sponsor. This may include, but not limited to the following:
•   Perform data entry to the Joint Access Database Environment (JADE) and maintain all customer sponsored and quota information.
•   Execute Special Access Program Nomination Process (SAPNP) Questionnaires.
•   Conduct Scattered Castles and SAPNP reviews of candidates being submitted for SAP access.
•   Fulfill all necessary specialized training as coordinated with sponsor.

The position is mostly transactional but would be required to perform some analysis regarding program eligibility. Attention to detail is critical and the ability to triage request for access. The candidate would also need a TS//SCI ++ clearance with experience with our customer and DoD.

Location: Chantilly, Virginia
Type: Contract
Job #3772

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

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

Key Responsibilities:

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

Qualifications

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

Preferred Qualifications:

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

Location: Sunnyvale, California
Type: Contract
Job #3742

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

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

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: Chantilly, Virginia
Type: Contract
Job #3738

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

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

Key Responsibilities:

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

Qualifications:

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

Location: Bethesda, Maryland
Type: Contract
Job #3736

Title: Counter Intelligence 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.

Cornerstone Defense is seeking a proactive Counterintelligence Campaign Manager to provide program level support to engage customers on program capabilities. This position will create and run campaigns based on information gathering and stakeholder management, to gain a complete understanding of what mission users are seeking, and also of the campaign workflow.

A comprehensive background in Counterintelligence is required to perform this position as well as an individual who understands how to build relationships with end users while creating value. This position will also work with the PMO to coordinate activities and requirements with mission managers and technical teams.

Qualifications

Active TS/SCI with poly is required. Minimum Education: B.S. or relevant experience in Program Management.
8+ years of related experience in Counterintelligence analysis and or Counterintelligence support is required.
Experience providing direct support to Government IT Program Managers who manage multiple intelligence community programs.
Experience creating and running campaigns using stakeholder management and relationship building techniques.
Possess a strong understanding of what mission users are seeking and an understanding of the campaign workflow.
Must understand how to build relationships with users and know how to create value.
Must be forward leaning.
Experience with OneNote and utilizing the application to provide daily/weekly program activity reports, status, program metrics for senior leadership and stakeholders.
A deep understanding an experience with working within the intelligence community (IC).
Possess the ability to prioritize to achieve the most efficient and effective execution of the project objectives.

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

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

Company Overview:

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: 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.

* 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: Chantilly, Virginia
Type: Contract
Job #3612

GRAPH DATABASE ENGINEER
Chantilly, VA

JOB DESCRIPTION

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

KEY RESPONSIBILITIES

· Design, develop, test, and deploy scalable and efficient software solutions

· Collaborate with cross-functional teams to identify and prioritize project requirements

· Participate with code reviews and ensure high-quality, modular, and reusable code

· Troubleshoot and debug issues in the application, including performance optimization and error handling

· Stay up-to-date with industry trends and emerging technologies, applying this knowledge to improve our application

· Design and implement data models that meet the needs of the application, ensuring data consistency and integrity

EDUCATION AND EXPERIENCE

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

· 5+ years of related software development experience.

REQUIRED QUALIFICATIONS

· 5+ years of experience in systems software development in NodeJS

· Strong proficiency working with graph databases (for example JanusGraph) and graph query languages

· Strong understanding of software design patterns, principles and best practices

· Excellent problem-solving skills, with the ability to work effectively in a team environment

· Basic understanding of data modeling concepts, including entity-relationship, data normalization, and denormalization

· Experience with Git workflows, including feature branching, pull requests and code reviews

· Ability to work effectively in a Linux-based development environment

DESIRED QUALIFICATIONS

· Experience with Node.js, Express, MongoDB and Cassandra

· In-depth knowledge of ElasticSearch, including indexing, querying and aggregation

· Knowledge of containerization leveraging Kubernetes

· Familiarity with CI/CD pipelines and automation tools such as Jenkins or Argo CD

· Hands-on experience working with message brokers such as RabbitMQ or AWS SQS

Location: Reston, Virginia
Type: Contract
Job #3560

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

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

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

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

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

Location: McLean, Virginia
Type: Contract
Job #3503

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

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

Location: Bethesda, Maryland
Type: Contract
Job #3492

Title: IT PMO Analyst
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 motivated, career and customer-oriented IT PMO Analyst to join our team at Bethesda, MD, to provide unparalleled support to our customer and to begin an exciting and rewarding career. This position provides support to an SAIC intelligence community customer. The successful candidate will support the direction of the program, develop, guide and monitor all aspects of schedule, administration and performance. They will also be responsible for coordination and collaboration with Government officials, to keep them informed and up to date on the program status.

Duties include:

Performs as a project lead, experience in managing project schedule and performance.
Directly contributes to project definition, requirements development and/or enhancement efforts including cost management/avoidance, schedule estimation and tracking, contract performance management, risk management, requirements analysis, and quality assurance activities.
Performs analysis of business and user needs, requirements, documentation of requirements, and translation into proper requirements specifications.
Ensures proper performance of tasks necessary and the ability to block and tackle issues to achieve the most efficient and effective execution of the project objectives.
Utilizes expert communication skills needed to direct the skilled technical resources and report on the technical progress, issues, and problem areas, as well as write and review technical documents.
Communicates status, requirements, metrics with leadership and customers.
Maintain focus on organizing and managing time and resources for the program deliverables.
Specifically support the following activities/functional areas:
Prepare Project status reviews and other formal reviews to be presented to the Government
Communicate issues and solutions to the Government PM in a timely and transparent manner
Ensure compliance with all regulatory and administrative requirements imposed by the contract in coordination with the Contractor's contracts staff
Develop/streamline processes to ensure mission accomplishment and program deliverables.
Assist the SAIC PM by providing input to customer deliverable reports
Qualifications

Active TS/SCI with poly is required
Minimum Education: B.S. or relevant experience in Program Management.
10+ years of related experience in program and project management and or business process analysis / PMO Analyst type of role
Experience using Agile Scrum Methodology and working knowledge of JIRA
Ability to work with minimal supervision
IT knowledge and experience
Familiarity with Cloud technology desirable
Excellent verbal and written communication skills
PMP preferred

Location: Chantilly, Virginia
Type: Contract
Job #3456

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

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

Required Skills:

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

Preferred Skills/Experience:

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

Location: Chantilly, Virginia
Type: Contract
Job #3454

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

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

Required Skills:

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

Location: Chantilly, Virginia
Type: Contract
Job #3365

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

Responsibilities:

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

Basic Qualifications:

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

Preferred Qualifications:

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

Location: Chantilly, Virginia
Type: Contract
Job #3363

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

Responsibilities:

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

Requirements:

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

Preferred Qualifications:

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