• Linux Systems Administrator

    Lockheed Martin (Sunnyvale, CA)
    …and more than 570 facilities that span more than 70 countries\. We are hiring a Linux System Administrator , Sr to support daily IT operations in our ... Business & Digital Transformation \(EBDT\) organization\. **Basic Qualifications:** * Active Secret clearance * Knowledge of Linux /UNIX Server Administration *… more
    Lockheed Martin (11/20/25)
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  • HPC Linux Systems Administrator 3/4…

    Northrop Grumman (Melbourne, FL)
    …Professionals, We Want You!** The Northrop Grumman Classified Solutions team is seeking a senior ** Linux Systems Administrator ** to join its dynamic team of ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees… more
    Northrop Grumman (12/04/25)
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  • Sr . Linux /Windows Systems…

    Lockheed Martin (King Of Prussia, PA)
    …networking topographies, Virtualization Technologies * Must currently have an active Top Secret Clearance **Desired Skills:** * Windows and Linux OS ... be required within 6 months of start\) * CompTIA Linux \+ or Red Hat Certified Systems Administrator ...CompTIA Linux \+ or Red Hat Certified Systems Administrator Certification * Ability to provide in\-depth monitoring, able… more
    Lockheed Martin (11/14/25)
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  • Senior Linux System…

    GovCIO (Madison, WI)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This ... 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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  • 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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  • Sr Principal Linux Systems…

    Northrop Grumman (Melbourne, FL)
    …Professionals, We Want You!** The Northrop Grumman Classified Solutions team is seeking an senior ** Linux Systems Administrator ** to join its dynamic team of ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees… more
    Northrop Grumman (11/25/25)
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  • Sr . Systems Administrator

    Lockheed Martin (King Of Prussia, PA)
    …to obtain an SCI security clearance . CompTIA Security\+ Certification . CompTIA Linux \+ or Red Hat Certified System Administrator Certification . Familiarity ... operator in the loop\. **The Work** As a Systems Administrator on the JES Program , you will: \-Work...of the client/server/storage/network devices \-Patch and harden Windows and Linux \(Red Hat\) and networking systems with Security personnel… more
    Lockheed Martin (10/29/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …platforms, but there are also Linux distributions as well. + The Senior Systems Administrator II shall support the mid-level internal escalation tier(s) for ... integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows...to be onsite. The position requires an active Top Secret /SCI clearance and the ability to obtain and maintain… more
    V2X (11/15/25)
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  • Sr . Systems Administrator

    Arena Technical Resources, LLC (Washington, DC)
    …US Job ID: ATR 17714 Job Description Job Title: Sr . Systems Administrator Job Location: Washington, DC (Hybrid) Clearance: Secret Job Description: . Manage ... Sr . Systems Administrator Location: Washington, DC,...Secret Clearance to start Required Technical Skills: . Senior Level system administrator skills required .… more
    Arena Technical Resources, LLC (10/25/25)
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  • Sr . Storage Administrator

    CGI Technologies and Solutions, Inc. (Radford, VA)
    ** Sr . Storage Administrator ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia, Radford **Position ID:** J1025-2177 **Employment ... Time **Position Description:** CGI Federal is looking for a Sr . Storage Administrator to help support a...future duties and responsibilities:** This position is for a Senior Storage Administrator for a mixed and… more
    CGI Technologies and Solutions, Inc. (10/29/25)
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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 ... Administrator Overview: S4 is seeking an experienced Senior Unix/ Linux OS Administrator to...compliance, and outage information Required Qualifications: + Active Top Secret security clearance and eligible for SCI access +… more
    S4 Inc. (10/08/25)
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  • Sr Principal Systems Administrator

    Northrop Grumman (Aurora, CO)
    …of history, they're making history. Northrop Grumman Space Systems (NGSP) is seeking a ** Sr Principal Systems Administrator ** to join our team at our facility in ... be limited to, the following:** + Perform as a Linux and Windows System Administrator on large...experience is required + **Candidate must have active/current Top Secret /SCI clearance with adjudicated Full Scope Polygraph at time… more
    Northrop Grumman (11/13/25)
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  • Senior Linux Systems…

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    **Overview** SENIOR LINUX ADMINISTRATOR (RDTE) Bowhead seeks a Senior Linux Administrator (NetServ) to join our team in Dahlgren, VA. The ... Senior Linux Administrator (NetServ) is responsible...obtain and maintain a security clearance at the Top Secret level. US Citizenship is a requirement for this… more
    UIC Government Services and the Bowhead Family of Companies (11/21/25)
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  • Sr . Principal NetApp Storage…

    Northrop Grumman (Linthicum Heights, MD)
    …Grumman's Chief Information & Digital Office (CIDO) organization is seeking a senior NetApp Storage Administrator with expertise in NetApp storage management ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees have… more
    Northrop Grumman (10/16/25)
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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...CLEARANCE: + Must be a US Citizen + Top Secret security clearance is required with T5 or equivalent… more
    Alaka'ina Foundation Family of Companies (11/20/25)
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  • System Administrator , High Performance…

    RTX Corporation (Tucson, AZ)
    …for a security clearance​ **Security Clearance:** Secret - Current **System Administrator , High Performance Computing (HPC) - P2** ** Senior Analyst Level** ... problems that create a safer, more secure world. **Job Summary:** This Senior Analyst (P2) High-Performance Computing (HPC) candidate will provide Raytheon Digital… more
    RTX Corporation (10/24/25)
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  • Sr . Principal Storage & Data Protection…

    RTX Corporation (Tucson, AZ)
    …and create end-of-end solutions to solve complex DT infrastructure problems. As a ** Senior Principal level System Administrator ,** this role will require a ... as only US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current At Raytheon, the foundation of everything we do is rooted in… more
    RTX Corporation (12/05/25)
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  • Senior Linux /Unix Systems…

    SMX (Dahlgren, VA)
    Senior Linux /Unix Systems Administrator ...+ Must be able to obtain and maintain Top Secret + 6+ years' experience administering Linux /Unix ... Dahlgren, VA SMX is looking for a highly motivated Senior Linux /Unix Administrator to join...application performance tuning + Troubleshooting + Resource allocation + Secret clearance with ability to obtain and maintain Top… more
    SMX (12/04/25)
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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 ... following OS Certifications required + Linux + Linux + Red Hat Certified System Administrator (RHCSA) **Security Clearance** Top Secret security clearance… more
    Amentum (09/24/25)
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  • Senior Systems Administrator (Unix/…

    EPS Corporation (Dahlgren, VA)
    Senior Systems Administrator (Unix/ Linux ) - (758) Share this job as a link in your status update to LinkedIn. Job Title Senior Systems Administrator ... Job Description EPS Corporation is seeking a highly skilledSenior Systems Administrator (Unix/ Linux )to support enterprise-level networks and systems within a… more
    EPS Corporation (11/13/25)
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