• Linux Administrator , Senior

    Amentum (Hanover, MD)
    …continuously trying to stay ahead of the next challenge. **Responsibilities:** This Senior Linux administrator position will provide candidates with ... & Intel space? If so, look no further. Amentum is seeking a ** Linux Administrator , Senior ** to join our team of passionate individuals in **Hanover,… more
    Amentum (11/21/25)
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  • 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 & ... 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 Linux System…

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Linux System Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD (Onsite) Position Overview: The Senior ... (Required): + CompTIA Security+ CE or CompTIA Server+ CE + Red Hat Certified System Administrator (RHCSA) + MCSA, MAC OS, or MCP + Must meet DoD 8750 and 8140… more
    Black Bear Technology Solutions, LLC (11/21/25)
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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 & ... how this program "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverseteam that provides end-to-end… more
    Leidos (10/09/25)
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  • Senior Linux System…

    ManTech (Fort Meade, MD)
    Mantech seeks a motivated, career and customer-oriented ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will ... perform system capacity analysis and planning. + Configure and manage Linux operating systems; install and maintain OS software; implement system enhancements… more
    ManTech (10/25/25)
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  • Senior Linux System…

    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, ... utilization; perform capacity analysis and system planning. + Configure and manage Linux and Windows operating systems; install, load, and enhance OS software for… more
    ManTech (10/14/25)
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  • Senior Linux System…

    GovCIO (Washington, DC)
    …referral to this job (https://careers-govcio.icims.com/jobs/6348/ senior - linux -system- administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active...administration duties will be included in this role. + Senior -level RedHat Linux server administration experience, experience… more
    GovCIO (11/07/25)
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  • 337 - Senior Linux Systems…

    ARSIEM (Annapolis Junction, MD)
    …every client you work with. ARSIEM is looking for a motivated and experienced Linux System Administrator for a small, diverse team that provides end-to-end ... software, systems, and network engineering services to support Integrated Discovery Operations (IDO). You will lead, evolve, and maintain a dynamic, modern DevOps architecture, often based on open-source technology and not relying on corporate baselines, to… more
    ARSIEM (10/30/25)
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  • Senior Systems Administrator

    CACI International (Annapolis Junction, MD)
    …Type of Travel: Local * * * **The Opportunity:** CACI is seeking a Senior Linux Systems Administrator to provide support for implementation, troubleshooting ... Senior Systems Administrator Job Category: Information...in the resolution process + Configure and manage primarily Linux /Unix (or other applicable) operating systems and installs/loads operating… more
    CACI International (10/08/25)
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  • System Administrator - Linux

    Leidos (Annapolis Junction, MD)
    **Description** **System Administrator - Linux ** **Leidos** has a new and exciting opportunity for a **System Administrator - Linux ** in our **National ... and will respond to hardware and software incidents and work with senior system administrators, at times remotely from other locations. Other responsibilities… more
    Leidos (11/19/25)
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  • Jr./Mid-Level Networking Systems…

    Belay Technologies (Annapolis Junction, MD)
    …and a finalist in 2021! Belay Technologies is seeking a Jr./Mid-level System Administrator to join our intel team. The selected individual will be responsible for ... and will respond to hardware and software incidents and work with senior system administrators, at times remotely from other locations. Other Responsibilities… more
    Belay Technologies (11/07/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to join our team, ... better. GDIT has an immediate opening for a Systems Administrator to fill a Core Services position supporting the...Administrator or similar role + Strong experience with Linux and Windows-based systems administration. + Knowledge of cloud… more
    General Dynamics Information Technology (09/16/25)
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  • Senior System Administrator

    Oracle (Washington, DC)
    …experiences to our collaborators while ensuring reliability and performance. The Senior System Administrator is responsible for day-to-day activities required ... and management tools), Storage, and Unix Servers running at peak performance. The Senior System Administrator is the escalation point for System Administrators… more
    Oracle (11/25/25)
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  • Senior Systems Administrator

    BAE Systems (Washington, DC)
    **Job Description** BAE Systems is seeking a Senior **Systems Administrator ** to join the Machine-assisted Analytic Rapid-repository System (MARS) Advanced ... with an anticipated decision expected by Winter/ Spring 2026** **.** The Senior **Systems Administrator ** responsibilities include, but are not limited to:… more
    BAE Systems (10/29/25)
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  • Senior Cloud System Administrator

    ManTech (Hanover, MD)
    ManTech seeks a motivated, career- and customer-oriented **Sr** **Cloud System Administrator ** to join our team in **Hanover, MD.** Our team delivers enterprise ... incidents and performing root cause analysis + Administer and troubleshoot various Linux distributions (eg, Ubuntu, CentOS, RHEL) within both cloud and on-premise… more
    ManTech (09/10/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics ... and make a difference in National** **Security!** As a Senior Systems Administrator you will play a...Administration and SSP/Security support for the program in both Linux and Windows environments. + Implement, troubleshoot, and maintain… more
    Leidos (11/15/25)
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  • Senior High Performance Computing (HPC)…

    BAE Systems (Annapolis Junction, MD)
    …incentives may be available based on position level and/or job specifics. ** Senior High Performance Computing (HPC) Systems Administrator ** **115702BR** EEO ... based IT enterprise in installation, configuration, and networking of Linux and Windows based platforms. + Oversee servers running...client server configurations (Group Policy, Centrify, DNS, LDAP + Linux Scripting (Bash, Perl etc) + Linux more
    BAE Systems (09/09/25)
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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 ... required to have the following skills: + Experienced with Linux , Windows, VMWare + Support the development of Service...and internal customers for escalated tickets + Experienced with Linux , Windows, and VMWare + Support the development of… more
    Belay Technologies (11/19/25)
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  • Senior ServiceNow Systems…

    SAIC (Annapolis Junction, MD)
    **Description** SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program! In this role you will do many ... in the resolution process + Configure and manage UNIX, Linux and Windows operating systems and installs/loads operating system...Minimum of 14 years of experience as a Systems Administrator in programs and contracts of similar scope, type,… more
    SAIC (11/06/25)
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  • Mid/ Senior System Administrator

    Belay Technologies (Annapolis Junction, MD)
    …in 2020 and a finalist in 2021! Belay Technologies is seeking a System Administrator (SA) to join our intel team. The SA provides support for implementation, ... and complexity within the federal Government is required. + Senior Level: Fifteen (15) years of experience in programs...VCenter/VMWare + AWS Experience + VPC, EC2, S3 + Linux and Windows operating systems + CentOS, RedHat, Windows… more
    Belay Technologies (11/19/25)
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