• System Administrator

    Assertive Professionals (Chantilly, VA)
    Polygraph Timeline Pipeline Description Assertive Professionalsis seeking aSystem Administrator with Polygraph supporting ourNational Security Customer in ... System Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small Business… more
    Assertive Professionals (01/07/26)
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  • Senior Linux Systems Administrator

    Leidos (Annapolis Junction, MD)
    …**Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **Intelligence Sector's Cyber & Analytics Business ... make a difference in National** **Security!** Join our team as a **Linux Systems Administrator ** , where you'll provide crucial support for the implementation,… more
    Leidos (01/16/26)
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  • Sccm/Mecm Systems Administrator

    Leidos (Alexandria, VA)
    …operations across multiple enclaves, classifications, and time zones. The System Administrator provides systems and software Operations and Maintenance (O&M) ... **Description** Leidos is seeking an SCCM/MECM System Administrator to support a large enterprise IT contract for the DOD. The System Administrator will support… more
    Leidos (12/08/25)
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  • Systems Network Administrator

    Leidos (Laurel, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Systems Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics ... make a difference in National Security!** **Job Summary:** The Systems Network Administrator provides support for implementation,...systems . + Configure and manage Linux, UNIX and Windows (or other applicable) operating systems and… more
    Leidos (11/18/25)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented **Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... understanding of client and server operations and maintenance with Windows 10 and 11 environments and Windows ...or high school diploma/GED and 13 years of relevant systems administration experience with 3 + years in a… more
    ManTech (12/19/25)
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  • Linux Systems Administrator

    Leidos (Springfield, VA)
    **Description** Leidos is seeking an experienced, customer-facing Linux Systems Administrator to join our dynamic team supporting mission-critical infrastructure ... infrastructure in data center settings. + Serve as a customer-facing administrator , assisting users with application, account, hardware, or other technical issues… more
    Leidos (01/16/26)
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  • Systems Administrator

    AeroVironment (Annapolis Junction, MD)
    …Manage client/server/storage/network infrastructure. + Configure and manage RedHat Linux and Windows systems . + Support vulnerability management using Nessus. + ... IT infrastructure. This role involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems . You'll work directly with both… more
    AeroVironment (01/16/26)
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  • Systems Administrator

    Belay Technologies (Annapolis Junction, MD)
    …team. You will play a key role in supporting and optimizing IT systems across Linux, Windows and VMware environments. You'll provide critical troubleshooting, ... involved in the resolution process + Provides in-depth experience in trouble-shooting IT systems + Configures and manages UNIX and Windows operating systems more
    Belay Technologies (11/19/25)
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  • Senior Systems Administrator

    Leidos (Gaithersburg, MD)
    …part of the Decision Advantage Solutions Business Area, is currently seeking a Senior Systems Administrator . As a senior member of our IT operations team, you ... . **Primary Responsibilities:** + Lead system administration for Linux and Windows -based systems in secure, mission-critical environments. + Architect and… more
    Leidos (01/16/26)
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  • Sr. Systems Administrator (Linux)

    Themis Insight (Fort Meade, MD)
    …and Private, Civilian and Military expertise to every case. We are hiring a Sr. Systems Administrator (Linux) to work in Fort Meade, MD. Position location is ... involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots,… more
    Themis Insight (12/19/25)
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