• Senior Systems Administrator

    Leidos (Vienna, VA)
    …procedures (startup/shutdown, backup, upgrade) **Required Clearance:** Active and in-scope TS / SCI with polygraph required for consideration. US citizenshipis ... Security Sector at Leidos is seeking a **Senior System Administrator ** to join a dynamic team based in **Tysons...team responsible for managing a wide range of mission-critical systems . **Key Details** : + Work hours fall within… more
    Leidos (07/29/25)
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  • System Administrator

    Chenega Corporation (Oakton, VA)
    …IT Operations Support, Software Development, and Program Management. Job Title:System Administrator Location:Oakton, Virginia Clearance Level: Top Secret ... interests of our nation. SecuriGence is seeking an experienced Systems Administrator to help contribute to our...SSCP; GICSP. + Requires a minimum of an active TS / SCI clearance. Matthew J. Keller Vice President… more
    Chenega Corporation (08/13/25)
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  • Systems Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …ID:** RQ206477 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None ... group of computers running on one or more operating systems . + Understand all the different systems ...days over 2 week period) * Security Clearance Level: TS / SCI with Polygraph * Required Skills and… more
    General Dynamics Information Technology (09/02/25)
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  • System Administrator

    Koniag Government Services (Winchester, VA)
    Arlluk Technology Solutions, a Koniag Government Services company **,** is seeking a System Administrator with a Top - Secret Security clearance to support ATS ... and conceptualizing processes **Security Clearance Requirements:** + Ability to obtain a Top - Secret w/ SCI Eligibility **Our Equal Employment Opportunity… more
    Koniag Government Services (09/15/25)
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  • System Administrator IV

    Arena Technical Resources, LLC (Reston, VA)
    …Location: Reston, VA Clearance Required: TS / SCI We are seeking a Systems Administrator IV candidate to support an Intelligence Community customer in the ... System Administrator IV Location: Reston, VA, US Job ID:...will work closely with government Customers, contractor Project Lead, Information Systems Security Officer (ISSO), Application Vendor,… more
    Arena Technical Resources, LLC (09/30/25)
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  • System Administrator

    Shuvel Digital (Reston, VA)
    …requirement. Briefly Describe the Work: GITI is looking for a mid-level Systems Administrator with experience in installing, configuring, troubleshooting, and ... Clearance Level: TS / SCI US Citizenship: Required Job Classification:...of requirements, system architecture, and detailed design documents. A Systems Administrator must be able to collaborate… more
    Shuvel Digital (08/13/25)
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  • System Administrator

    System One (Springfield, VA)
    …/ SCI with the eligibility to obtain a CI Poly Contact: ###@altaits.com The Systems Administrator will work closely with both on-site and remote users to ... Job Title: System Administrator Location: Springfield VA Type: Contract To Hire...equivalent combination of education and years of experience. + TS / SCI Clearance required and eligibility to obtain… more
    System One (09/16/25)
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  • Senior System Administrator

    ManTech (Chantilly, VA)
    …to join our team in **Chantilly, VA** . A qualified Senior Systems Administrator will support a secure Windows-based Information System and will assist and ... support the installation, operation, and maintenance of all current and future Information Systems . Duties and responsibilities involve the support and… more
    ManTech (09/01/25)
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  • Linux System Administrator -Senior Level

    Nightwing (Sterling, VA)
    …have a broad range of experience supporting mission critical networks and computer systems . CLEARANCE REQUIREMENT: TS / SCI with POLY Responsibilities + Assist ... defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA location. The… more
    Nightwing (09/26/25)
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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …and vulnerabilities. **Required Skills:** - US Citizenship - Must have an active DoD Secret clearance, TS / SCI clearance is preferred. - Must be able ... seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of… more
    Nightwing (08/28/25)
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