• Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    ManTech seeks a **Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will provide support for implementation, ... resource utilization; perform capacity analysis and system planning. + Configure and manage Linux and Windows operating systems ; install, load, and enhance OS… more
    ManTech (12/24/25)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    **ManTech** seeks an experienced and passionate, career and customer-oriented ** Linux System Administrator ** to join our team located in the Fort Meade, MD area. ... in support of developing and testing of information technology systems + Experience with Linux administration +...systems **Clearance Requirement:** + Must have a current/active TS /SCI with Poly **Physical Requirements:** + Must be able… more
    ManTech (01/15/26)
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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 ... Louis, MO + Tucson, AZ **Clearance Level Required:** Active Top Secret to be considered with the...with Polygraph. **Primary Responsibilities:** + Lead system administration for Linux and Windows-based systems in secure, mission-critical… more
    Leidos (01/16/26)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    **MANTECH** seeks an experienced and passionate, career and customer-oriented **System Administrator ** to join our team located in the Fort Meade, MD area. ... for new operating system rollout. + Configure host-based intrusion detection systems . + Monitor and troubleshoot/examine detected anomalies. + Developed automation… more
    ManTech (12/30/25)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    **MANTECH** seeks an experienced and passionate, career and customer-oriented **System Administrator ** to join our team located in the **Fort Meade, MD** area. ... for new operating system rollout. + Configure host-based intrusion detection systems . + Monitor and troubleshoot/examine detected anomalies. + Developed automation… more
    ManTech (12/02/25)
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  • Systems Administrator

    Guidehouse (Bethesda, MD)
    …Required** **:** None **Clearance Required** **:** Active Top Secret SCI ( TS /SCI) **What You Will Do:** + Perform Linux and Windows builds, installs, ... configuration, administration, and troubleshooting of Linux and Windows servers to include base configuration, security...**What You Will Need:** + An ACTIVE and MAINTAINED " TOP SECRET /SCI ( TS /SCI)" Federal or… more
    Guidehouse (12/10/25)
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  • Systems Administrator

    SMX (Patuxent River, MD)
    Systems Administrator (4600)at SMX(View all jobs)...hot fixes **Required Skills and Experience:** + Clearance Required: Top Secret + An interim TS ... River, MD SMX is looking for a highly motivated ** Systems Administrator ** with demonstrated experience to maintain...is required to start; will consider upgrading candidate from Secret + BS or BA degree in a Technical… more
    SMX (01/07/26)
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  • System Administrator Level 3

    Jovian Concepts, Inc. (Annapolis, MD)
    …of Positions","uitype":32,"value":"1"},{"fieldLabel":"Clearance Required","uitype":2,"value":" Top ... by law in employment.<\/div><\/div>","faviconId":"rzdliec182fab1ef548499d4ddfcbeeacba4f","jobTitle":"System Administrator Level 3","companyName":"Jovian Concepts,… more
    Jovian Concepts, Inc. (12/24/25)
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  • Systems Administrator

    AeroVironment (Annapolis Junction, MD)
    …local internal equity as well as alignment with market data. **Clearance Level** Top Secret with Poly **ITAR Requirement:** _T_ _his position requires access ... resolution. + Manage client/server/storage/network infrastructure. + Configure and manage RedHat Linux and Windows systems . + Support vulnerability management… more
    AeroVironment (01/16/26)
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  • Systems Administrator Expert

    General Dynamics Information Technology (Annapolis Junction, MD)
    …RQ210149 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... involved in the resolution process. Configures and manages UNIX, Linux and Windows operating systems and installs/loads...with other applications is required. + Security Clearance Level: TS /SCI w/Poly + Location: On Customer Site + US… more
    General Dynamics Information Technology (11/08/25)
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