• Linux Systems Administrator (Unix)

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    …SECURITY CLEARANCE REQUIREMENTS: Must be able to obtain an maintain a security clearance at the Top Secret level. US Citizenship is a requirement for Top ... and backup/recovery of system configurations and user data files. TIER III ( Sr . Linux Systems Administrator ) + Understand and use essential tools… more
    UIC Government Services and the Bowhead Family of Companies (09/28/25)
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  • Senior Linux Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become part of ... to drive impactful solutions in support of critical government missions. As a ** Senior Linux Systems Administrator ,** you will help maintain and enhance the… more
    ManTech (08/30/25)
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  • Linux System Administrator - Senior…

    Nightwing (Sterling, VA)
    …defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA location. The ... qualified Systems Administrator will support a very dynamic program in a...supporting mission critical networks and computer systems. CLEARANCE REQUIREMENT: TS /SCI with POLY Responsibilities + Assist with the design,… more
    Nightwing (09/26/25)
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  • Senior Web Administrator

    ManTech (Herndon, VA)
    **ManTech** seeks a motivated, career and customer-oriented ** Senior Web Administrator ** to join our team in **DC, Maryland, and Virginia (DMV) area** . ... ie Python, Java, C++, Cobol, etc + Understanding and experience with primary network topologies, LANs, WANs and other common network standards; understanding of… more
    ManTech (08/16/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    **Description** The National Security Sector at Leidos is seeking a ** Senior System Administrator ** to join a dynamic team based in **Tysons Corner, VA** . This ... STIG guidance to support ATO sustainment efforts + Troubleshoot and resolve network , automation pipelines, and infrastructure issues + Cloud VPC, Compute Services,… more
    Leidos (07/29/25)
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  • Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... and server issues and with installing and configuring physical equipment. + Network & Software Management: Ability to provide technical support in the management… more
    ManTech (08/20/25)
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  • Print System Administrator

    SAIC (Quantico, VA)
    …relevant experience may be considered in lieu of a degree. + US Citizen and Active Top Secret clearance with SCI eligibility. + IAT Level II Certification in one ... **Description** SAIC is seeking a Printer/System Administrator for a full-time/onsite role in Quantico, VA....Setting up and managing print servers and ensuring proper network connectivity; 3) configuring and maintaining printer drivers and… more
    SAIC (09/19/25)
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  • System Administrator

    Assertive Professionals (Chantilly, VA)
    System Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small Business ... for itself within the Defense Contracting community taking 15th place in America's Top 100 Small Business Visionaries for the 2018 Best of Small Business Awards,… more
    Assertive Professionals (07/10/25)
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  • Windows Systems Administrator

    CACI International (Mclean, VA)
    Windows Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: ... None * * * **The Opportunity:** The Windows System Administrator & Team Lead is part of a Team...feedback and one on ones. **Qualifications:** **_Required:_** + Active TS /SCI w/ Poly clearance is required + Bachelor's degree… more
    CACI International (09/15/25)
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  • Systems Administrator 2 (Bluemont, VA)

    William C Brown Inc (Springfield, VA)
    …other characteristic protected by law. Description WCBinc is looking for a Sr . Systems Administrator to provide support for implementation, troubleshooting and ... Systems Administrator 2 (Bluemont, VA) EOE Statement We are...and LUNs. Working knowledge of basic TCP/IP networking concepts ( network interfaces, switches, routing, VLANS, etc) Good analytical and… more
    William C Brown Inc (07/24/25)
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