• Linux Systems Administrator

    ManTech (Laurel, MD)
    Mantech seeks a motivated, career and customer-oriented **Linux** **System Administrator ** to join our team in **Laurel,** **MD.** You will be part of a dedicated ... are not limited to:** + Configure and manage Linux operating systems . Installs/loads operating system software, troubleshoots maintains integrity and configures… more
    ManTech (07/23/25)
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  • Linux Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Bethesda, MD)
    Linux Systems Administrator The Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you could use those ... Solutions for an enterprise environment. As a Linux System Administrator on our project, you'll constantly look for ways...wait. You Have: + 5+ years of experience with systems administration + 3+ years of experience with RedHat… more
    BOOZ, ALLEN & HAMILTON, INC. (07/25/25)
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  • Tier 2 Systems Administrator

    CACI International (Springfield, VA)
    Tier 2 Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee ... are seeking a skilled and motivated Tier 2 System Administrator to join our growing IT team. In this...be responsible for maintaining and troubleshooting mission critical IT systems , supporting end users, and ensuring the security and… more
    CACI International (06/06/25)
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  • Linux Systems Administrator

    ManTech (Hanover, MD)
    ManTech seeks a motivated, career- and customer-oriented **Linux Systems Administrator ** to join our team in **Hanover, MD** . This role supports a global ... **Responsibilities include, but are not limited to:** + Provide Systems Administration support for CNOS labs in a Help...+ Fifteen (15) years of experience as a System Administrator in programs and contracts of similar scope, type,… more
    ManTech (05/10/25)
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  • Systems Administrator

    ManTech (Hanover, MD)
    …be substituted for a bachelor's degree. + Twenty (20) years experience as a Systems Administrator in programs and contracts of similar scope, type, and ... ManTech seeks a motivated, career and customer-oriented **System Administrator ** , to join our team in **Hanover,...a test environment running a wide variety of Operating Systems to include Windows, Red Hat Linux, CentOS, Fedora… more
    ManTech (04/30/25)
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  • Lead Systems Administrator 3

    BigBear.ai (Columbia, MD)
    Overview BigBear.ai is hiring a Lead Systems Administrator 3 for an exciting upcoming Cyber Operations contract award to support contracts that provide ... years of experience Clearance: Must possess and maintain a TS/SCI with polygraph Perform systems engineering activities and assist in the preparation of a work… more
    BigBear.ai (06/30/25)
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  • Linux Systems Administrator

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux** ** Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... support for implementation, troubleshooting and maintenance of Information Technology (IT) systems . Manage IT system infrastructure and any processes related to… more
    Leidos (07/26/25)
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  • 306 - Senior Systems Administrator

    ARSIEM (Laurel, MD)
    …impact on every client you work with. ARSIEM is looking for a Senior Systems Administrator to provide Systems Administration support for mission operations ... Support the Cyber Range and Lab environments by providing systems administration and automation in support of operator training,...Requirement: This position requires an active TS/SCI with a polygraph . You must be a US citizen for consideration.… more
    ARSIEM (06/06/25)
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  • Systems Administrator (IT Program…

    Nightwing (Annapolis Junction, MD)
    …defense, civil, and commercial markets. Nightwing is seeking an experienced Linux Systems Administrator with a proven ability supporting classified program ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers'… more
    Nightwing (06/24/25)
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  • Network Management Systems (NMS) Database…

    CACI International (Sterling, VA)
    Network Management Systems (NMS) Database Administrator (DBA) Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with ... Polygraph Employee Type: Regular Percentage of Travel Required: Up...and maintaining the databases that support our network management systems , ensuring high performance, availability, and security of critical… more
    CACI International (07/24/25)
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