• Senior Software Developer TS /SCI

    Parsons Corporation (Centreville, VA)
    …+ Experience with C++ or C + Proficiency with Linux **Security Clearance Requirement:** An active Top Secret SCI security clearance is required for this ... for. **Job Description:** Parsons is looking for a software engineer looking to improve and enhance mission-critical software applications?...and develop customer software that will be deployed in systems helping make the country a safer place? In… more
    Parsons Corporation (08/23/25)
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  • Systems Engineer ( Engineer…

    HII (Suffolk, VA)
    …Technologies, click here for a short video: https://vimeo.com/732533072 Who We Are The Systems Engineer will be a key technical contributor to a dedicated ... administration, environment tailoring, configuration management, and direct exercise support. The Systems Engineer will work closely with exercise planners, the… more
    HII (09/27/25)
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  • Critical Facility Technician 4 - TS /SCI…

    M. C. Dean (Warrenton, VA)
    …US Citizenship, for access to classified information; **Applicant must hold an active Top - Secret SCI with Poly clearance.** **Passport Requirement:** ... life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and...for access to classified information; **Applicant must hold an active Top - Secret SCI with Poly… more
    M. C. Dean (08/30/25)
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  • Critical Facility Technician 3 - TS /SCI…

    M. C. Dean (Warrenton, VA)
    …US Citizenship, for access to classified information; **Applicant must hold an active Top - Secret SCI with Poly clearance.** **Passport Requirement:** ... life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and...for access to classified information; **Applicant must hold an active Top - Secret SCI with Poly… more
    M. C. Dean (08/30/25)
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  • Software Developer C++ TS /SCI/ Poly

    Parsons Corporation (Centreville, VA)
    …Familiarity with virtualized environments including KVM, VMWare **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance ... years of experience working with networking protocols, and tools such as Wireshark + ** Top Secret Clearance with Poly** **What Desired Skills You'll Bring:** +… more
    Parsons Corporation (08/08/25)
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  • Sr. Mechanical Engineer

    Leidos (Springfield, VA)
    …project related items with stakeholders, contractors, and related authorities. + FMCS systems familiarity. + Active Professional Engineer (PE) license ... **Job Description** We are seeking a highly experienced **Senior Mechanical Engineer ** to lead the **design, maintenance, and configuration management** of site… more
    Leidos (09/30/25)
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  • Senior Software Developer - TS /SCI…

    Leidos (Reston, VA)
    …the government problem domain. **Required clearance:** Candidates for consideration **must possess an active and in-scope** Top Secret clearance with the ... Mission Solutions Business Area at Leidos seeks a Software Engineer to lead the creation of new software capabilities...test, simulation, and verification of software simulation or decision systems . A successful applicant will be able to write… more
    Leidos (09/21/25)
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  • Capability Integration Lead ( TS /SCI)

    Tau Six (Arlington, VA)
    …national security IT integration projects for a critical DoD customer. CLEARANCE REQUIRED: Active Top Secret /SCI US Government clearance The Capabilities ... an agile small company delivering cutting edge cybersecurity and systems integration services to the US National Security market,...more years of experience + Proven experience as IT engineer , project manager or similar role + Experience in… more
    Tau Six (09/22/25)
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  • HVAC Technician 3 - TS /SCI with Polygraph

    M. C. Dean (Charlottesville, VA)
    …requirements, including US Citizenship, for access to classified information; ** Active TS /SCI with Polygraph** **License/Certification Requirement:** Applicants ... meet eligibility requirements, including US Citizenship, for access to classified information; ** Active TS /SCI with Polygraph** + Applicants selected must hold a… more
    M. C. Dean (08/27/25)
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  • Specialist, Systems Engineering (Space…

    L3Harris (Springfield, VA)
    …Job Title: Specialist, Systems Engineer - Space Operations Trainer ( Active TS /SCI w/ CI Poly Required) Job Code: 28586 Job Location: Springfield, ... Job Description: L3Harris Technologies is currently seeking a Specialist, Systems Engineer - Space Operations Trainer to...minimum of 8 years of prior related experience. * Active Top Secret /SCI with CI… more
    L3Harris (09/11/25)
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