• Sr Principal HPC Linux Systems…

    Northrop Grumman (Redondo Beach, CA)
    …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...files, and updating virus definitions + Experience as an administrator for Red Hat or similar Linux more
    Northrop Grumman (09/11/25)
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  • Sr Principal Linux Systems…

    Northrop Grumman (Boulder, CO)
    …Chief Information and Digital Office (CIDO) organization is seeking a highly experienced ** Senior Linux Server Admin** to join its dynamic team of technical ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description**...be limited to the following: + Perform as primary Linux Systems Administrator for a classified government… more
    Northrop Grumman (10/09/25)
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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 (09/10/25)
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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 (09/18/25)
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  • Senior Linux System…

    GovCIO (Montgomery, AL)
    **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 (08/08/25)
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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 (08/23/25)
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  • Sr . Linux /Unix…

    S4 Inc. (Omaha, NE)
    …with Experience | Full Time | Comprehensive and competitive benefits Job Title: Sr . Linux /Unix Administrator Work Location: USSTRATCOM Offutt AFB Clearance: ... NE25002 LCAT: Senior Network and Computer Systems Administrator Overview: S4 Inc. has a Sr . Linux /Unix System Administrator position available… more
    S4 Inc. (10/08/25)
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  • Sr . Principal AIX or Linux System…

    RTX Corporation (Tewksbury, MA)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted ... the integrity of our systems and support IT infrastructures around the world. ** Sr . Principal System Administrators,** internally known as Sr . Principal Analyst,… more
    RTX Corporation (10/02/25)
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  • Principal/ Sr . Principal Linux

    Northrop Grumman (Baltimore, MD)
    …the best work of your career. Northrop Grumman Mission Systems is seeking a Linux Systems Administrator to join its Classified Solutions team in Linthicum, MD. ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At...be limited to the following: + Perform as a Linux /Redhat Systems Administrator for a classified government… more
    Northrop Grumman (10/28/25)
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  • Sr . System Administrator

    Nightwing (Sterling, VA)
    …customer management and providing technical services to enable customer mission accomplishment. The Senior System Administrator ( Linux ) will serve as a key ... Linux administration, automation, and security hardening. The Senior System Administrator will ensure the availability,...duties as assigned **Qualifications:** + US Citizenship + Active Secret clearance. Must be able to obtain a TS/SCI… more
    Nightwing (10/29/25)
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  • Sr . Linux System…

    RTX Corporation (Aurora, CO)
    …secure the integrity of our systems and support IT infrastructures around the world. ** Senior Linux System Administrator ** , internally known as Senior ... as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted… more
    RTX Corporation (10/28/25)
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  • Sr . Linux Systems…

    RTX Corporation (El Segundo, CA)
    …Active Top Secret security clearance is preferred. + Experience with Linux and Windows Operating Systems. + Experience with VMware administration including ESXi ... as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted… more
    RTX Corporation (09/24/25)
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  • Sr Principal Windows Systems…

    Northrop Grumman (Dulles, VA)
    …Information and Digital Office (CIDO) organization is seeking a highly experienced ** Senior Principal Windows Systems Administrator ** to join its dynamic team ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At...to the following: + Perform as a Windows System Administrator for a classified government contract. + Able to… more
    Northrop Grumman (10/31/25)
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  • IT Systems Administrator , Sr / Top…

    Lockheed Martin (Las Vegas, NV)
    …multiple platforms including RHEL, Windows Server, and Windows 10\. Active Top Secret Security Clearance and US Citizenship Required for this facility\. **Basic ... Qualifications:** * Must hold an active DoD Top Secret \(U\.S\. Citizen\) * Must have a non\-expired CompTIA...of start \(e\.g\. AZ\-900, vmWare VCTA\-DCV, RHCSA, etc\.\) * Linux and Windows Server experience * On\-prem virtualization experience… more
    Lockheed Martin (10/18/25)
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  • Principal/ Sr . Principal Systems…

    Northrop Grumman (Patuxent River, MD)
    …Grumman Aeronautics Systems (NGAS) has an exciting career opportunity for a **Principal/ Sr . Principal Systems Administrator ** to join the Ground Segment team ... Administrator for a classified government contract. + Perform as a Linux \Redhat System Administrator for a classified government contract. + Maintain smooth… more
    Northrop Grumman (09/18/25)
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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 (10/23/25)
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  • 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 ... Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT Infrastructure...like you. **MEANINGFUL WORK AND PERSONAL IMPACT:** As a ** Senior Linux Systems Administrator ** ,… more
    General Dynamics Information Technology (09/26/25)
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  • Senior Linux Systems…

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    Linux Systems Administrator to join our team in Dahlgren, VA. The Senior Linux Administrator is responsible for system administration and customer ... **Overview** SENIOR LINUX SYSTEMS ADMINISTRATOR :...**Overview** SENIOR LINUX SYSTEMS ADMINISTRATOR : Bowhead seeks a...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 (10/25/25)
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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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  • Sr . Storage Administrator

    CGI Technologies and Solutions, Inc. (Radford, VA)
    ** Sr . Storage Administrator ** **Category:** Infrastructure/Cloud **Main location:** United States, Radford **Position ID:** J1025-2177 **Employment Type:** Full ... 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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