• Principal Endpoint Security Systems

    Leidos (Bethesda, MD)
    …**Leidos** has a new and exciting opportunity a **Principal Endpoint Security Systems Engineer ** in our **National Security Sector's (NSS) Cyber & ... Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security...a degree. + **To be considered must have an active TS /SCI with polygraph security clearance** **Preferred… more
    Leidos (11/28/25)
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  • Flight Safety Systems Engineer

    SAIC (Chantilly, VA)
    …or assist in actions to decommission the spacecraft. **Qualifications** + Must possess an active TS /SCI clearance with Polygraph. + BS or MS degree in ... from the SAIC headquarters, our Chantilly, VA team supports systems development, targeting & intelligence analysis, systems ...integration and more. This position is for a System Engineer for a large contract supporting a cutting-edge and… more
    SAIC (11/14/25)
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  • Machine Learning Engineer

    William C Brown Inc (Springfield, VA)
    …Required Location Springfield Full-Time/Part-Time Full-Time Exempt/Non-Exempt Exempt Security Clearance Requirements Active TS / SCI Clearance. This position is ... safe and tomorrow is smarter. Our work depends on TS /SCI cleared Machine Learning Engineer joining our.... Demonstrated professional or academic experience with version control systems such as Gitlab. . Demonstrated experience leveraging CUDA… more
    William C Brown Inc (12/15/25)
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  • Senior Systems Engineer (Onsite)

    Collins Aerospace (Seminole, FL)
    …a position that best suits their skills and allows for career growth. As a Senior Systems Engineer , you will be a member of an Integrated Program Team (IPT) ... related field and minimum 3 years of experience * Active and transferable SECRET clearance is required...networking for ground-based, ship, submarine, or airborne platforms * Active TS /SCI What We Offer * Medical,… more
    Collins Aerospace (01/13/26)
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  • Senior Systems Engineer (Onsite)

    RTX Corporation (Largo, FL)
    …a position that best suits their skills and allows for career growth. As a Senior Systems Engineer , you will be a member of an Integrated Program Team (IPT) ... a related field and minimum 3 years of experience Active and transferable SECRET clearance is required...networking for ground-based, ship, submarine, or airborne platforms * Active TS /SCI **What We Offer** * Medical,… more
    RTX Corporation (01/10/26)
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  • Information Systems Security…

    ARSIEM (Columbia, MD)
    …Original Posting Date: 2025-07-08 Clearance Requirement : This position requires an active TS /SCI with a polygraph. You must be a US ... you work with. ARSIEM is currently looking for an Information Systems Security Engineer 2 to participate as a security engineering representative on engineering… more
    ARSIEM (01/06/26)
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  • Mission Systems Engineer

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a **Mission Systems Engineer ** with NRO experience to provide Modeling and Simulation (M&S) and Systems Engineering and ... and acquisitions that advance the NRO's space resiliency posture. The Mission Systems Engineer will work in a collaborative team environment supporting… more
    SAIC (01/01/26)
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  • Software Engineer

    Lockheed Martin (King Of Prussia, PA)
    …are met in conjunction with team leadership **Selected candidate must have an active TS /SCI security clearance for consideration\.** **This is an EARLY CAREER ... Martin Space Mission Processing team is seeking a highly skilled and motivated Software Engineer to join our development team\. As a Software Engineer , you will… more
    Lockheed Martin (01/07/26)
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  • Information Systems Security…

    TekSynap (Chantilly, VA)
    …baseline changes and/or elements required to retain ATO. **REQUIRED QUALIFICATIONS** + Active TS /SCI + 8-10 years proven track record of progressively ... certification and accreditation. + Possesses one of the following active certifications: + CompTIA Security+ CISCO CCNA + CISCO...our team supporting the Space Development Agency. The Information Systems Security Engineer will act as liaison… more
    TekSynap (12/06/25)
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  • Software Test and Evaluation Integrator…

    Amentum (Aberdeen, MD)
    …and testing native or 3rd party Artificial Intelligence services. **Required Clearance:** + ACTIVE CLEARANCE LEVEL REQUIRED: Top Secret w/SCI eligibility ... is currently recruiting a **Software Test and Evaluation Integrator** ( Engineer ) to join our team at APG, MD in...MD in support of our customer, **Project Manager Intelligence Systems & Analytics (PM IS&A),** supporting the **Test &… more
    Amentum (01/13/26)
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