• COLSA Corporation (Huntsville, AL)
    Join our team as a Linux Systems Administrator, where you will support and manage a diverse mix of workstations, servers, and high-performance computing (HPC) ... for a skilled professional with a solid foundation in Linux administration and a collaborative approach to...to 12 years of related experience + Active DoD Top Secret Clearance with SCI eligibility +… more
    DirectEmployers Association (10/02/25)
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  • Systems Technology Forum, Ltd. (Dahlgren, VA)
    ** Security Clearance Required Company Overview Systems Technology Forum LTD (STF) is an established industry partner with a passion for exceptional performance and ... technology, and logistics services, STF is committed to delivering high-quality systems engineering, technical and professional support services that meet and exceed… more
    Appcast IO CPC (10/29/25)
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  • Tyto Athene (Ashburn, VA)
    …as an applications or systems administrator. + Practical knowledge of Windows and Linux systems administration . + Experience with Linux or Windows ... and heterogeneous systems . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. + This role ensures that all… more
    DirectEmployers Association (11/01/25)
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  • Lockheed Martin (King Of Prussia, PA)
    …Windows Server Operating Systems (ie, 2008 R2/2012/2016/2019/2022) * Knowledge of Linux Administration (RH7.x, RH8.x) * Familiarity of cloud based services * ... (SP 800-53) * Hands on experience with Kubernetes, VMware, Linux and Windows operating systems , networking, *.../SCI Security Clearance is required Desired Skills: Active DoD Secret or Top Secret Clearance… more
    Appcast IO CPC (10/30/25)
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  • COLSA Corporation (Huntsville, AL)
    …professional experience. + Minimum of 8 years related experience + Active DoD Top Secret Clearance with SCI eligibility; US Citizenship required + Must ... technical lead for a diverse infrastructure environment. The role spans Windows systems , Nutanix virtualization, Linux (RHEL), and enterprise storage. The… more
    DirectEmployers Association (09/21/25)
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  • Raytheon (Richardson, TX)
    …perform database administration activities, deployment automation. Active and transferable Top Secret US government issued security clearance is required ... as only US citizens are eligible for a security clearance​ Security Clearance: TS /SCI without Polygraph At Raytheon, the foundation of everything we do is rooted… more
    Talent (11/04/25)
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  • Applied Research Solutions (Dayton, OH)
    …years demonstrated performance in related technology. Minimum Security Clearance Required + Top Secret w/ SCI eligibility Additional or Preferred Qualifications ... and personalized attention from ARS Senior Managers.?? **Responsibilities:** + Support a Linux & Windows AirGapped environment. + Troubleshoot systems as needed,… more
    DirectEmployers Association (09/04/25)
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  • COLSA Corporation (Huntsville, AL)
    …+ Nutanix, Citrix, or VMWare certification. + OS administration experience with Linux and Windows environments. + Active TS //SCI clearance with a current CI ... Join our team as a Virtualization & Windows Systems Analyst, where you will take a role...to 12 years of related experience + Active DoD Top Secret Clearance with SCI eligibility +… more
    DirectEmployers Association (10/02/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …+ Configure, manage, secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms (updates, security, ... expertise, initiative, and experience supporting a mix of network and systems engineering and administration tasks. Key Responsibilities: Network Design… more
    DirectEmployers Association (09/30/25)
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  • Tyto Athene (Fort Meade, MD)
    …in at least one of the following tools: SolarWinds or Junos Space + Basic Linux Administration or command line interface (CLI) and scripting skills. + JNCIA or ... of TLS and PKI + Proficiency with Juniper networking devices. **Clearance:** + Active Top Secret with SCI eligibility clearance. **Location:** + Ft. Meade, MD… more
    DirectEmployers Association (10/29/25)
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  • Linux Systems Administrator 2/3…

    Northrop Grumman (Melbourne, FL)
    …experience performing day-to-day administrative tasks related to managing Red Hat Linux systems **Basic Qualifications for Level 3** : + Master's Degree ... administrative tasks related to managing Red Hat Linux systems **Preferred Qualifications** : + Bachelor's...: + Bachelor's degree in Information Technology + Active Top Secret , TS /SCI, SAP/SAR access,… more
    Northrop Grumman (10/07/25)
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  • Principal Linux Systems

    Northrop Grumman (Baltimore, MD)
    …your career. Northrop Grumman Mission Systems is seeking a well-qualified ** Linux Systems Administrator** to join its Classified Solutions team of technical ... be limited to the following: + Perform as primary Linux Systems Administrator for a large, classified...with non-technical customers. **Preferred Qualifications** : + Current DoD Top Secret security clearance. + Experience with… more
    Northrop Grumman (10/15/25)
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  • Senior Linux Systems Administrator

    General Dynamics Information Technology (Macdill AFB, FL)
    …troubleshooting Red Hat / CentOS Linux servers. + Proven experience in systems administration and infrastructure management. + Ability to review, modify, and ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job...you advance your career. Join GDIT as a **Senior Linux Systems Administrator** and build an impactful… more
    General Dynamics Information Technology (09/26/25)
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  • Linux Systems Administrator

    BAE Systems (Annapolis Junction, MD)
    …your life and keep you performing at your best. We are in search of a Linux Systems Administrator to: + Install, configure, and network UNIX and/or NT based ... incentives may be available based on position level and/or job specifics. ** Linux Systems Administrator** **115415BR** EEO Career Site Equal Opportunity… more
    BAE Systems (09/09/25)
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  • LINUX Systems Administrator - Active…

    General Dynamics Information Technology (Washington, DC)
    …of related experience **US Citizenship Required:** Yes **Job Description:** ** Linux Systems Administrator** **- Active Top Secret Required** Seize your ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job...** Systems Administrator** with GDIT. A career in systems administration means connecting and enhancing the… more
    General Dynamics Information Technology (11/01/25)
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  • Linux Systems Administrator

    Nightwing (Sterling, VA)
    …intelligence community, defense, civil, and commercial markets. Nightwing is seeking a qualified Linux Systems Administrator to work with a close-nit team to ... Develop and maintain backup and disaster recovery plans for Linux systems . + Patch Management: Manage the...Skills:** + US Citizenship + Must have an active Secret clearance and obtain a TS /SCI clearance… more
    Nightwing (10/08/25)
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  • Linux Systems Administrator

    BCMC (Arlington, VA)
    …and business continuity of the customer mission. Responsibilities: - Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux (RHEL) ... and equipment in the lab environment. - Providing ongoing systems administration , technical support, upgrades, patching and...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    BCMC (10/16/25)
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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 ... Linux System Administrator!** Are you passionate about Linux systems and eager to make a...with Polygraph. + **Proven Experience:** 3 years of hands-on Linux system administration experience. + **Versatile Knowledge:**… more
    CACI International (10/18/25)
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  • Senior Linux Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    **Overview** SENIOR LINUX SYSTEMS ADMINISTRATOR: Bowhead seeks a Senior Linux Systems Administrator to join our team in Dahlgren, VA. The Senior Linux ... user workstations and associated software will be required. + Linux Admin will provide support for application...to obtain and maintain a security clearance at the Top Secret level. US Citizenship is a… more
    UIC Government Services and the Bowhead Family of Companies (10/25/25)
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  • Principal Linux Systems

    Northrop Grumman (Linthicum Heights, MD)
    …work of your career. Northrop Grumman Classified Solutions is seeking a well-qualified ** Linux Systems Administrator** to join its dynamic team of technical ... be limited to the following: + Perform as primary Linux Systems Administrator for a classified government...system environments + Candidates must have a current DOD ** Top ** ** Secret ** levelsecurity clearance, to include **SCI… more
    Northrop Grumman (08/20/25)
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