• Senior Systems Administrator - Windows/…

    Mount Sinai Health System (New York, NY)
    …Mount Sinai. The Administrator is the principal technology expert for Windows and Linux systems , and help support high-performance computing (HPC) environment in ... security, networking and metrics, etc. The infrastructure includes both Windows and Linux systems with file servers in multiple physical locations, and… more
    Mount Sinai Health System (03/25/25)
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  • Linux Systems Administrator

    CACI International (Linthicum, MD)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... * **The Opportunity:** Join our dynamic team as a Linux Systems Administrator, playing a crucial role...NSA TS/SCI with Poly clearance + 3+ years of Linux system administration experience + Proficiency in… more
    CACI International (04/16/25)
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  • Hybrid Systems Engineer, Sr (Windows…

    Lockheed Martin (Littleton, CO)
    …for\. This Systems Engineer Senior \- IT role is a Hybrid Systems Administration role, and will provide progressive experience in managing complex hybrid ... Server and various Linux distributions \(e\.g\., Red Hat Enterprise Linux , CentOS\)\. * Experience with database administration and management \(e\.g\.,… more
    Lockheed Martin (05/02/25)
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  • Unix/ Linux Administrator Lead

    Trace Systems Inc (Portsmouth, VA)
    …mini, or client/server based. Expert level experience in Red Hat Linux administration , server virtualization, application/Web server administration ... Job Overview Job Title: UNIX/ LINUX Administrator Lead Job Location: Portsmouth, VA Job Responsibilities Supporting the Operating System configuration and associated… more
    Trace Systems Inc (05/16/25)
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  • Cyber Defense Systems Specialist…

    Black Bear Technology Solutions, LLC (Fort Belvoir, VA)
    …VA. This is a senior-level role requiring a deep understanding of Linux systems , automation, and cybersecurity operations in mission-critical environments. Role ... Title: Cyber Defense Systems Specialist ( Linux & Automation) Location:...5+ years in cyber defense operations and secure system administration + Certifications (preferred but not required): + Red… more
    Black Bear Technology Solutions, LLC (05/19/25)
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  • Linux Systems Admin (TS/SCI…

    Lockheed Martin (Albuquerque, NM)
    …degree; or equivalent experience/combined education\. \- Advanced professional experience with Linux system administration \- Experience in software practices ... Convergence is part of Lockheed Martin's Rotary & Mission Systems business area\. As the company's center of excellence...all of the client/server/storage/network devices \- Patch and harden Linux RedHat OS and works with Security personnel to… more
    Lockheed Martin (04/30/25)
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  • Systems Administrator L3

    NTT America, Inc. (Sacramento, CA)
    …servers, networks, storage, and virtualization technologies. + Proficiency in operating systems (Windows, Linux ) and associated administration tools. ... be doing** **KEY RESPONSIBILITIES** + Install, configure, and monitor Windows and/or Linux operating systems and related software applications. + Manage and… more
    NTT America, Inc. (05/02/25)
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  • Linux Systems Engineer (TS/SCI…

    System One (Herndon, VA)
    Linux Systems Engineer TS/SCI Clearance is...to support short-term international travel. * 3-5 years of Linux / Unix system administration experience. * ... required Herndon, VA - ONSITE ALTA ITS is seeking a Linux Systems Engineer (Tier ll) to work for a government contractor in the Herndon, VA area. This is an… more
    System One (06/05/25)
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  • Senior Linux Administrator

    General Dynamics Information Technology (Falls Church, VA)
    …Trust/Other Required:** None **Job Family:** Systems Administration **Skills:** Computer Servers,Disaster Recovery (DR), Linux ,Software Updates,Technical ... SYSTEM ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system administration support for Linux operating systems...IMPACT:** + Provide system administration support for Linux operating systems including installing software, applying… more
    General Dynamics Information Technology (05/13/25)
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  • Linux / Unix Systems Administrator,…

    Lockheed Martin (Sunnyvale, CA)
    …National Security Space programs in Sunnyvale, CA\. **Your Mission:** As a Linux Information Systems Administrator, your responsibilities will include: * ... vulnerabilities, and perform system hardening to ensure the security of our systems \. * Root Cause Analysis: Perform in\-depth analysis to resolve technical issues… more
    Lockheed Martin (05/24/25)
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