• Virtual Infrastructure Engineer - Advanced…

    IDS International (Arlington, VA)
    …in cyber engineering, network operations, or cyber range development. + Top Secret security clearance. + Proficiency in virtualization, containerization, and ... information warfare. SITE 525 is seeking a highly skilled Cyber Virtualization Engineer to support the development and sustainment of advanced cyber training… more
    IDS International (10/31/25)
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  • GEOINT Systems Engineer

    KBR (Chantilly, VA)
    …Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our ... the country's most critical role - protecting our national security . We are seeking a GEOINT Systems Engineer...12 years or more relevant experience. + Active Top Secret /SCI clearance with a Polygraph + Strong analytical and… more
    KBR (10/30/25)
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  • Modeling & Simulation Engineer (Specialist)

    KBR (Reston, VA)
    Title: Modeling & Simulation Engineer (Specialist) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and ... solutions to our customers in the intelligence and national security communities. In this position, your work will have...space defense. KBR is seeking a Modeling & Simulation Engineer Specialist with AFSIM experience to join a team… more
    KBR (10/24/25)
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  • Senior Specialist, Systems Engineer…

    L3Harris (Springfield, VA)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Senior Specialist, Systems Engineer - Strategic Planner (TS/SCI w/ ... currently has an opening for a Senior Specialist, Systems Engineer - Strategic Planner. The Strategic Planner will be...8 years of prior related experience. + Active Top Secret /SCI with Poly clearance required. + 2+ years' experience… more
    L3Harris (10/16/25)
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  • Radar Research Engineer

    KBR (Chantilly, VA)
    …Research Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our ... security . KBR is looking for a Radar Research Engineer to join our team in Chantilly, Virginia. In...40 hours per week. Qualifications: Required: + Clearance: Top Secret /SCI + Education: Pursuing Bachelor's, Master's, or PhD in… more
    KBR (10/04/25)
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  • Senior Service Engineer - CTJ - Poly

    Microsoft Corporation (Reston, VA)
    **Overview** Microsoft has an exciting opportunity for a Senior Service Engineer to join the Azure Silver and Sovereign Team as part of the Cloud Transfer Service ... regulated industries. The systems you support will be required to meet the security policy and assurance requirements of both public and private sector customers.… more
    Microsoft Corporation (12/11/25)
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  • NCIS Senior Network Engineer

    Arena Technical Resources, LLC (Quantico, VA)
    NCIS Senior Network Engineer Location: Quantico, VA, US Job ID: ATR 17765 Job Description Job Title: NCIS Senior Network Engineer Job Location: Quantico, ... Virginia (Hybrid onsite 3 days/2 days remote) Eligibility/Clearance:Top Secret Clearancerequired. This position supports a government contract and required US… more
    Arena Technical Resources, LLC (12/05/25)
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  • Network Engineer - Intermediate

    Chenega Corporation (Fort Belvoir, VA)
    …Data Center, Security , or Collaboration) or higher is required. + Secret clearance Tier 5 investigation required. Join our Talent Network Chenega Corporation and ... Network Engineer - Intermediate Ft. Belvoir, VA Join our Talent Network Network Engineer - Intermediate Ft. Belvoir, VA C-CHR-24-044 TheNetwork Engineer -… more
    Chenega Corporation (12/01/25)
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  • Facilities Mechanical Engineer

    Leidos (Chantilly, VA)
    …submittals, and specifications tailored to site requirements. **Basic Qualifications** + **Current Top Secret SCI security clearance and the ability to pass a ... **Description** **Senior Mechanical Engineer ** Leidos is seeking a seasoned and innovative...Leidos is seeking a seasoned and innovative Senior Mechanical Engineer to lead the design, maintenance, and configuration management… more
    Leidos (10/27/25)
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  • Associate Sensors Engineer

    The MITRE Corporation (Mclean, VA)
    …underwater vehicles Basic Qualifications: + Ability to obtain and maintain at least a Secret security clearance which requires US citizenship. + BS or MS ... most challenging issues our nation is facing, from national security to climate change. We are seeking a mission-driven...Qualifications: + Ability to obtain and maintain a Top Secret /SCI clearance. + Experience in acoustic, radar, and sonar… more
    The MITRE Corporation (12/14/25)
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