• Senior Research Engineer , Advanced…

    Lockheed Martin (Arlington, VA)
    …and influence campaigns * Must have the ability to obtain aU\.S\. Secret security clearance that requires U\.S\. citizenship\. Applicants selected will be ... edge: neuromorphic computing or other non\-conventional \(bio\-inspired, \) *Active Secret level clearance or higher ** Security Clearance Statement:** This… more
    Lockheed Martin (10/31/25)
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  • Senior Field Engineer

    Leidos (Chantilly, VA)
    …to determine approach and feasibility of design within time, cost, and security requirement constraints. The Systems Engineer will provide ongoing maintenance, ... **Description** Leidos is looking for a Sr Field Engineer with a TS/SCI with polygraph to support work on an information technology (IT) contract. The contract… more
    Leidos (11/06/25)
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  • Sr. Network Engineer /Architect SME

    Leidos (Fort Belvoir, VA)
    …/ SCI clearance ** + **Active DoD IAT Level II (eg Security +) certification** + **Active CCNA certification** **Basic Qualifications:** + STEM Bachelor's degree ... **Description** Leidos is seeking a **Sr. Network Engineer /Architect with subject matter expertise** to support medium to large scale operations supporting the… more
    Leidos (10/21/25)
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  • Mission Systems Engineer

    KBR (Fort Belvoir, VA)
    …Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our ... have a profound impact on the country's most critical role - protecting our national security . KBR is seeking a Mission Systems Engineer in Springfield, VA to… more
    KBR (10/11/25)
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  • Principal Hardware Engineer

    Curtiss-Wright Corporation (Ashburn, VA)
    …and information to peer tears. + US Citizenship required; Active DoD Security Clearance is preferred **Who We Are** Our Values ... **Principal Hardware Engineer - Ashburn, VA** We have a great opportunity for a **_Principal_** **_Hardware Engineer to_** join our team Defense Solutions Group… more
    Curtiss-Wright Corporation (10/05/25)
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  • Linux Engineer

    Amentum (Chantilly, VA)
    …your skills to help shape the Cyber, Security , & Intel space? If so, look no further. Amentum is seeking a **Linux Engineer ** to join our team of passionate ... security and intelligence mission. **Your Impact:** Our Linux Engineer will join a team of highly skilled technical...+ various Linux flavors + Nginx + Certificate Management ** Clearance Required:** + TS/SCI with poly **Minimum Education:** +… more
    Amentum (10/01/25)
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  • Software Engineer TS/SCI Poly

    Leidos (Alexandria, VA)
    …quality work, both independently and with a team in a fast-moving environment. ** Security Clearance requirement:** + Candidates must possess an active **TS/SCI ... has a new and exciting opportunity for a **Software Engineer ** in our **National Security Sector's (NSS)...least 3 days with an anticipated close date of no earlier than 3 days after the original posting… more
    Leidos (08/26/25)
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  • Virtual Systems Engineer

    CACI International (Dahlgren, VA)
    …prior work experience is required. + Must be a US citizen. _Desired:_ + Secret-level security clearance . (US Citizenship is required in order to obtain a ... Virtual Systems Engineer Job Category: Engineering Time Type: Full time Minimum...security clearance from the DoD.) + Working knowledge of Aegis Combat/Weapon… more
    CACI International (09/30/25)
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  • Senior Mechanical Engineer

    Leidos (Reston, VA)
    …The Mission Solutions Business Area at Leidos is looking for a Mechanical Engineer to join our Reston, VA based team. The successful candidate will work ... to produce accurate intelligence estimates of standard facility operations (power, HVAC, security , etc.) and equipment + Model different aspects of a facility to… more
    Leidos (09/26/25)
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  • Cyber Engineer

    Leidos (Reston, VA)
    …The Mission Solutions Business Area at Leidos has an opening for a **Cyber Engineer in Reston, Virginia** to support a fast-paced team working on projects critical ... to National Security . The primary focus of the group is reverse...must possess an active TS/SCI, or a Top Secret clearance with a current SSBI, and be eligible to… more
    Leidos (09/25/25)
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