• Sr. O&M Network Engineer

    Leidos (Chantilly, VA)
    …and Forcepoint firewall equipment and applications is a plus. Requirements + Required Clearance: TS / SCI and Poly + Candidate must have 16 years of experience ... and 16 years. + Must comply with DoD 8570 Information Assurance Technical (IAT) Level 2. + Experience with...Internet Protocol (IP) subnet, Network Address Translation (NAT) and security technologies. + Demonstrated ability to engineer more
    Leidos (12/02/25)
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  • Principal Software Engineer

    Leidos (Bethesda, MD)
    …in lieu of a degree. + To be considered must have an active TS / SCI with polygraph security clearance **Preferred Qualifications** + Experience with ... a new and exciting opportunity for a **Principal** **Software Engineer ** in our **National Security Sector's (NSS)...the fiscal year ended January 3, 2025. For more information , visit www.Leidos.com . **Pay and Benefits** Pay and… more
    Leidos (11/07/25)
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  • ISSE

    System One (Reston, VA)
    …Kubernetes (OpenShift) and DoD cloud environments. Qualifications: Required: * Active DOD Top Secret / SCI + CI Poly security clearance. * Minimum 5 years ... ISSE TS / SCI CI Poly required Reston, VA...ONSITE Compensation: $200,000/year Join our dynamic team as an Information System Security Engineer (ISSE)… more
    System One (12/18/25)
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  • Principal Cyber Engineer

    Nightwing (Sterling, VA)
    …team that supports challenging, meaningful work that is vital to our national security , apply today! **Principal Cyber Engineer ** Cyber Offense and Defense ... is at a Nightwing site in Sterling, Virginia. **Technical Requirements** + Current TS / SCI clearance is required + Experience developing for Android or another… more
    Nightwing (12/12/25)
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  • 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 . KBR is seeking a System Engineer ...Minimal + Working Hours: Standard QUALIFICATIONS Required: + Active TS / SCI with polygraph required. + Bachelor's degree… more
    KBR (12/19/25)
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  • System Administrator

    Parsons Corporation (Colorado Springs, CO)
    Top Secret ( TS ) security clearance with eligibility for Secret Compartmented Information ( SCI ) + Willingness to submit to a ... agencies. The position will provide "day-to-day" support for Collateral, Sensitive Compartmented Information ( SCI...Management (IdM) ** Security Clearance Requirement:** An active Top Secret SCI security more
    Parsons Corporation (11/14/25)
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  • Principal RF Engineer

    CACI International (Springfield, VA)
    …design specifications to support deployable U. S. Army equipment within Sensitive Compartmented Information Facilities (SCIF's). Employs state-of-the-art ... Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: Regular Percentage of Travel Required: Up to 25% Type… more
    CACI International (10/31/25)
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  • GEOINT Systems Engineer

    KBR (Chantilly, VA)
    …scientific, or technical discipline and 12 years or more relevant experience. + Active Top Secret / SCI clearance with a Polygraph + Strong analytical and ... Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our… more
    KBR (10/30/25)
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  • Senior Specialist, Systems Engineer

    L3Harris (Springfield, VA)
    …domains in the interest of national security . Job Title: Senior Specialist, Systems Engineer - Strategic Planner ( TS / SCI w/ CI Poly Required) Job Code: ... currently has an opening for a Senior Specialist, Systems Engineer - Strategic Planner. The Strategic Planner will be...of 8 years of prior related experience. + Active Top Secret / SCI with Poly clearance… more
    L3Harris (10/16/25)
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  • Lead, Project Engineer

    L3Harris (Salt Lake City, UT)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Lead, Project Engineer Job Code: 32099 Job Location: USA-UT-Salt ... with customers. + Must be able to obtain a security clearance Required Qualifications: + Bachelor's Degree and minimum...Program Management Institute - PMP certification desired + Active TS / SCI preferred L3Harris Technologies is proud to… more
    L3Harris (12/13/25)
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