• Senior Linux Systems

    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 & ... 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 (09/26/25)
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  • Senior Windows Systems

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Windows Systems Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD Position Overview: The Senior Windows ... Required Qualifications: + Experience: Minimum of 10 years in systems administration and IT infrastructure leadership +...10 years in systems administration and IT infrastructure leadership + Education: Master's degree OR Bachelor's degree… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Aberdeen Proving Ground, MD)
    …Top Secret/SCI **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Information Technology (IT) Systems ,Process ... place to lead, innovate, and drive strategic change. We are seeking a Senior System Administrator / Integrator with proven experience delivering mission-critical… more
    General Dynamics Information Technology (11/08/25)
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  • (Mid. or Senior ) Networking Systems

    Belay Technologies (Annapolis Junction, MD)
    …up in 2020 and a finalist in 2021! Belay Technologies is seeking a Network Systems Administrator (Windows) to join our team. The selected individual will be ... responsible for monitoring infrastructure systems , applications, and processes, and for...respond to hardware and software incidents and work with senior system administrators, at times remotely from other locations.… more
    Belay Technologies (10/01/25)
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  • Senior ServiceNow Systems

    SAIC (Annapolis Junction, MD)
    …be substituted for the degree + Minimum of 14 years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is ... Provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems + Manage IT system infrastructure and any processes… more
    SAIC (11/06/25)
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  • Senior Linux Systems

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverseteam that provides end-to-end software, systems more
    Leidos (10/09/25)
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  • Senior Cloud System Administrator

    ManTech (Hanover, MD)
    …and on-premise contexts **Minimum Qualifications:** + 20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs and contracts of ... ManTech seeks a motivated, career- and customer-oriented ** Sr ** **Cloud System Administrator ** to join...our team in **Hanover, MD.** Our team delivers enterprise infrastructure capabilities for a global workforce performing a wide… more
    ManTech (09/10/25)
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  • Senior Systems Administrator

    Belay Technologies (Annapolis Junction, MD)
    …Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies seeks a Senior System Administrator (SA) to join our intel team. The SA provides support ... for implementation, troubleshooting and maintenance of IT systems . Manages IT system infrastructure and any processes related to these systems . Provides… more
    Belay Technologies (11/19/25)
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  • Senior Network/ Systems

    GovCIO (Annapolis, MD)
    senior -network- systems - administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** ... **Overview** GovCIO is currently hiring for a Senior Network/ Systems Administrator with an active Secret clearance. This position will be located in… more
    GovCIO (10/08/25)
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  • Senior Systems Administrator

    Competitive Range Solutions, LLC (Fort Meade, MD)
    …exciting projects in a collaborative, congenial environment. We are seeking a Senior System Administrator to lead the management, operations, and maintenance ... of complex DoD systems and networks. This role requires expertise in high-volume,...with cross-functional teams, supporting IT strategy, cyber defense, and infrastructure improvements. + Provide guidance and mentorship to junior… more
    Competitive Range Solutions, LLC (11/06/25)
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