• Senior Linux Systems…

    General Dynamics Information Technology (Macdill AFB, FL)
    …Advance how our customers operate while you advance your career. Join GDIT as a ** Senior Linux Systems Administrator ** and build an impactful career in ... like you. MEANINGFUL WORK AND PERSONAL IMPACT As a ** Senior Linux Systems Administrator ** ,...requirements. **Duties and Responsibilities** + Configure, deploy, and maintain Linux server environments, including physical and virtual… more
    General Dynamics Information Technology (12/18/25)
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  • Senior Linux /Unix…

    S4 Inc. (Omaha, NE)
    …with Experience | Full Time | Comprehensive and competitive benefits Job Title: Senior Linux /Unix Administrator Work Location: USSTRATCOM Offutt AFB ... Network and Computer Systems Administrator Overview: S4 is seeking an experienced Senior Unix/ Linux OS Administrator to support the USSTRATCOM IT… more
    S4 Inc. (10/08/25)
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  • Senior Linux Systems…

    Leidos (Camp Springs, MD)
    …of our critical Red Hat Enterprise Linux environment. As a Senior System Administrator , you'll be instrumental in designing, implementing, and maintaining ... Systems Security Certified Practitioner (SSCP)). + Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows...Systems: RHEL8 and RHEL 9. + Red Hat Satellite Server and Red Hat PCS Clustering. + Experience with… more
    Leidos (12/20/25)
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  • Senior Systems Administrator

    Alaka'ina Foundation Family of Companies (Kauai County, HI)
    …The Alaka`ina Foundation Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range Network. The position ... Senior Systems Administrator ( Linux )... Senior Systems Administrator ( Linux ) Location HI - Kaua'i...EXPERIENCE: + Advanced knowledge and certification in both Windows Server and RHEL is considered highly desired. + Proficiency… more
    Alaka'ina Foundation Family of Companies (11/20/25)
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  • Senior Systems Administrator

    ManTech (Fairmont, WV)
    **MANTECH** seeks a motivated and customer-oriented ** Senior Systems Administrator - Windows/ Linux Dual-Stack Specialist** to join our team in **Boulder, ... experience in Systems Administration, with demonstrated expertise in both Windows Server and Enterprise Linux environments. + Expert-level, hands-on experience… more
    ManTech (11/05/25)
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  • Senior Systems Administrator

    Amentum (Waimea, HI)
    Amentum is seeking a highly experienced Senior Linux System Administrator to oversee and manage enterprise-level Linux infrastructure in support of US ... Experience: + Advance knowledge and certification in both Windows Server and RHEL is considered highly desired + Proficiency...following OS Certifications required + Linux + Linux + Red Hat Certified System Administrator (RHCSA)… more
    Amentum (12/24/25)
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  • Senior Linux Systems…

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... us and make a difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where you'll provide crucial support for the… more
    Leidos (12/19/25)
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  • Systems Administrator II Generalist Sr…

    V2X (Springfield, VA)
    …respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server - active TS/SCI clearance to ... server technology solutions. Responsibilities Responsibilities: + The Senior Systems Administrator II shall provide O&M...Windows Server platforms, but there are also Linux distributions as well. + The Senior more
    V2X (11/15/25)
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  • Senior Linux Systems…

    The Boeing Company (Hazelwood, MO)
    …The Boeing Company's Specialized United States Infrastructure organization is currently seeking a ** Senior Linux Systems Administrator ** to join the team in ... 7 and higher environments, perform preventative maintenance, and conduct monthly server patching + Utilize vulnerability scanners like ACAS/Nessus and manage… more
    The Boeing Company (12/25/25)
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  • Senior Linux System…

    GovCIO (Madison, WI)
    …standard Linux administration duties will be included in this role. + Senior -level RedHat Linux server administration experience, experience with other ... USD $135,000.00 /Yr. Submit a 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) **Location** _US-Remote_ **ID** _2025-6348_… more
    GovCIO (11/07/25)
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  • 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 ... If so, look no further. Amentum is seeking a ** Linux Administrator , Senior ** to join...operations, monitoring and problem resolution for all of the client/ server /storage/network devices, mobile devices, etc. Provides support for the… more
    Amentum (11/21/25)
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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 ... * Certifications (Required): + CompTIA Security+ CE or CompTIA Server + CE + Red Hat Certified System Administrator (RHCSA) + MCSA, MAC OS, or MCP + Must… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Senior Linux System…

    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 ... include but are not limited to:** + Configure and manage Linux (Rocky) operating systems. Installs/loads operating system software, troubleshoots maintains integrity… more
    ManTech (12/25/25)
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  • Senior Systems Administrator

    Mount Sinai Health System (New York, NY)
    …data warehouse team and a research data services team. The **_Senior Systems Administrator /Engineer,_** as a member of the Scientific Computing and Data group, is ... a computational and data science ecosystem for researchers at Mount Sinai. The Administrator is the principal technology expert for Windows and Linux systems,… more
    Mount Sinai Health System (12/22/25)
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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 ... day-to-day operations and monitoring, and resolve issues related to client/ server /storage/network devices and mobile systems. + Escalate and communicate status… more
    ManTech (12/23/25)
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  • Linux System Administrator

    Nightwing (Sterling, VA)
    …defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA location. The ... qualified Systems Administrator will support a very dynamic program in a...and/or network/systems administration + Proficiency experience with Red Hat Linux (RHEL) workstations and servers, including installation, configuration, administration… more
    Nightwing (12/20/25)
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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 ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will provide support for implementation, ... of IT systems. + Manage IT system infrastructure and processes related to client/ server /storage/network devices and mobile devices. + Perform Tier 1 (Help Desk) and… more
    ManTech (12/24/25)
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  • Linux / AWS Systems Administrator

    Northrop Grumman (Morrisville, NC)
    …**Responsibilities will include but not be limited to the following:** + Serve as a senior Linux Systems Administrator within an AWS cloud environment for a ... Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic...+ Linux Operating Systems support experience. + Linux Workstation and Server management experience. +… more
    Northrop Grumman (11/15/25)
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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 ... enclave comprised of various hardware, software, and network components to include server architecture, virtual machines, managed switches, NAS, VLANs, and VPNs. +… more
    ARSIEM (10/30/25)
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