• Full Stack Infrastructure and Monitoring…

    Nightwing (Sterling, VA)
    …mitigation countermeasures as necessary. **Required Qualifications:** + US Citizenship + Active Secret clearance (with the ability to obtain TS /SCI clearance and ... and Defense Experts (CODEX) is seeking a skilled Full Stack Infrastructure Engineer with expertise in AWS Cloud production and development environments. This role… more
    Nightwing (01/07/26)
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  • Lead Systems Engineer

    ManTech (Chantilly, VA)
    **MANTECH** is seeking a motivated, career and customer-oriented Lead Systems Engineer to join our team in Chantilly, VA. This is a position will be managing and ... directory services, and automation technologies. + Identifying and mitigating security vulnerabilities, testing and documenting security -relevant changes, and… more
    ManTech (12/17/25)
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  • DevOps Engineer

    Lockheed Martin (Hanover, MD)
    …use of advanced electronics to undermine our way of life\. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the ... support including analysis, design, development, integration, testing, procurement, deployment, security , training and sustainment for collection and antenna systems\.… more
    Lockheed Martin (11/05/25)
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  • Solutions Architect SME - CNO

    General Dynamics Information Technology (Annapolis Junction, MD)
    …x86, etc. Strong reverse engineer and debugger using decompilers, gDB, etc. * Security clearance level: TS /SCI w/ Polygraph * US citizenship required GDIT IS ... RQ212312 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job… more
    General Dynamics Information Technology (01/06/26)
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  • Network Engineer

    SAIC (Washington, DC)
    …with an anticipated decision expected by Winter/ Spring 2026.** The **Network Engineer ** responsibilities include, but are not limited to: + Ensures effective ... remote break/fix services to address network issues promptly **Qualifications** + Active TS /SCI with Polygraph + One of the following certifications: CompTIA … more
    SAIC (01/03/26)
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  • Full Stack Software Engineer SME

    Leidos (Alexandria, VA)
    **Description** National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security ... technologies, and tactics to keep pace with an ever-evolving security landscape and succeed in their pursuit to protect...a highly experienced, versatile, and visionary Full Stack Software Engineer Subject Matter Expert (SME) for the Maru Program.… more
    Leidos (11/01/25)
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  • Software Engineer - Senior Level

    Lockheed Martin (Annapolis Junction, MD)
    …use of advanced electronics to undermine our way of life\. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the ... Lockheed Martin to keep the threats at bay\. **THE WORK** As a Software Engineer \- Senior Level you will be responsible for: * Developing, maintaining, and… more
    Lockheed Martin (11/20/25)
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  • Senior Software Test Engineer

    BigBear.ai (Annapolis Junction, MD)
    Overview BigBear.ai is seeking a Test Engineer to play a pivotal role in the testing and validation of cutting-edge Computer Network Operations (CNO) tools. This ... in fast-paced environments, and want to contribute to national security , we want to hear from you. What you...and performance. What you need to have + Active TS /SCI with Polygraph Required to support this mission-critical program.… more
    BigBear.ai (11/20/25)
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  • Applications Engineer 4 (Siem)

    Kaizen Approach, Inc (Annapolis Junction, MD)
    Kaizen Approach is currently looking to hire an Applications Engineer (Senior) responsible for designing software tools and subsystems to support software reuse and ... data flow diagrams, and other accepted design techniques, including Computer -Aided Software Engineering (CASE) tools. You will estimate software development… more
    Kaizen Approach, Inc (10/16/25)
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  • UI Software Engineer

    Lockheed Martin (Fort Meade, MD)
    …use of advanced electronics to undermine our way of life\. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the ... support including analysis, design, development, integration, testing, procurement, deployment, security , training and sustainment for collection and antenna systems\.… more
    Lockheed Martin (12/11/25)
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