• Cloud Innovation Solution Architect

    Leidos (Alexandria, VA)
    …This position requires candidates to obtain a Public Trust and will accept up to TS / SCI + Must, at a minimum, have one of these certifications: MCSE (Server), ... mission-critical systems that keep our nation secure and resilient. We're seeking a Senior Cloud Solutions Architect to join us at the US Coast Guard C5ISC in… more
    Leidos (09/26/25)
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  • Mid-Level Systems Engineer

    Leidos (Chantilly, VA)
    …Chantilly, VA + Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a Polygraph. ... Solutions Business Area, is currently seeking a Mid-Level Systems Engineer for the Chinook Program. As part of a...or working with the GEOINT lifecycle. + Knowledge of cloud -based architectures (AWS, C2S) and DevSecOps environments. + Familiarity… more
    Leidos (11/22/25)
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  • SIGINT Systems Engineer

    SAIC (Chantilly, VA)
    …related experience. Relevant experience to be substituted in lieu of degree. + Active Top Secret / SCI clearance with Poly. + Experience with space/ground ... **Description** SAIC is seeking an **SIGINT Systems Engineer ** to support SAIC's Prime Program, Landmark AOS in Chantilly, VA. Landmark AOS is a large SETA program,… more
    SAIC (11/21/25)
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  • CAD Modeling and Simulation Engineer

    SAIC (Chantilly, VA)
    …years of experience in modeling and simulation for aerospace or space systems. + Active Top Secret / SCI w/Poly Clearance. + Proficiency with CAD tools (eg, ... **Description** **SAIC** is seeking a **CAD Modeling and Simulation Engineer in Chantilly, VA** to support a government customer. **The successful candidate will:**… more
    SAIC (10/24/25)
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  • Modeling and Simulation Engineer

    SAIC (Chantilly, VA)
    …of experience in modeling and simulation for aerospace or space systems. + Active Top Secret / SCI w/Poly Clearance. + Strong understanding of sensor ... **Description** SAIC is seeking a Modeling and Simulation Engineer to support a customer in Chantilly, VA. The successful candidate will: + Develop and maintain… more
    SAIC (10/22/25)
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  • Machine Learning Modeling and Simulation…

    SAIC (Chantilly, VA)
    …of experience in modeling and simulation for aerospace or space systems. + Active Top Secret / SCI w/Poly Clearance. + Strong understanding of sensor ... **Description** SAIC is seeking a Machine Learning Modeling and Simulation Engineer in Chantilly, VA. The successful candidate will: + Develop and maintain… more
    SAIC (10/22/25)
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  • Software Engineer

    ManTech (Norfolk, VA)
    …+ Active Secret Security Clearance with the ability to obtain and maintain Top Secret / SCI security clearance **Physical Requirements:** + Must be able ... **MANTECH** seeks a motivated, career and customer-oriented **Software Engineer ** to join our team in **Norfolk, VA.** This is an **onsite** position. Join the… more
    ManTech (10/09/25)
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  • Linux Systems Engineer

    SAIC (Arlington, VA)
    …dark web. Clearance/Citizenship Requirements: + US Citizenship with an active Top Secret Clearance with ability to obtain SCI (Active and/or PR within last ... **Description** Seeking a Senior Systems/Network Engineer , working with a diverse team of contractors,...+ CI Poly (active or ability to obtain). Additional Information : The ideal candidate must have excellent communication skills… more
    SAIC (09/20/25)
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  • SIGINT System Engineer - Mid

    KBR (Chantilly, VA)
    …resolve issues and risks throughout the acquisition lifecycle Minimum qualifications: + Active TS / SCI with CI Polygraph + BS in engineering, physics, or related ... Title: SIGINT System Engineer - Mid Belong. Connect. Grow. with KBR!...US Government leadership Security Requirements: Must have an active TS - SCI with a current CI Polygraph Belong,… more
    KBR (10/21/25)
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  • Cyber Security Project Engineer

    SAIC (Chantilly, VA)
    …technologies. This position is located in **Chantilly, VA** and requires an **active TS / SCI clearance with Polygraph** . Job responsibilities include, but are ... **Description** SAIC is seeking a **Cyber Security Project Engineer ** to support a diverse set of corporate...and mitigations to enhance security posture. **Qualifications** + **Active TS / SCI with polygraph.** + Bachelors and 14… more
    SAIC (11/14/25)
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