• Principal Linux Administrator

    RTX Corporation (Richardson, TX)
    …hardware, operating systems , and software. + Perform software upgrades, patching, and system maintenance on Linux systems . + Troubleshoot issues and ... in performing system maintenance, installations, upgrades, and backups on Linux systems . + Team-oriented with strong collaboration skills across multiple… more
    RTX Corporation (12/12/25)
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  • Linux Administrator

    CACI International (Chantilly, VA)
    …(IAM) and integration with Linux systems . * Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification. * ITIL, ... Linux Administrator Job Category: Information Technology...with RMF (Risk Management Framework). Required Qualifications * Active Top Secret clearance (SCI eligibility strongly preferred).… more
    CACI International (11/13/25)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    **Description** The DTRA program at Leidos is seeking a **Senior Linux Administrator ** in Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team ... on-site as needed in Reston, VA._** **Required Clearance:** Active Top Secret with SCI **Key Responsibilities:** +...required + Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred) Come break things… more
    Leidos (12/30/25)
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  • Quality Assurance Linux

    Assertive Professionals (Hanover, MD)
    …in the resolution process. Configures and manages LINUX operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... Quality Assurance Linux Administrator About the Organization Established...system and installs Required Experience and Qualifications: + TS /SCI with aPolygraph + Nine (9) years experience in… more
    Assertive Professionals (12/25/25)
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  • Linux Administrator , Senior

    Amentum (Baltimore, MD)
    …in the resolution process. Configures and manages Linux operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... If so, look no further. Amentum is seeking a ** Linux Administrator , Senior** to join our team...and configures network components. **Requirements:** * Must have active Top - Secret clearance with SCI and Poly *… more
    Amentum (01/06/26)
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  • Linux Administrator , Senior

    Amentum (Hanover, MD)
    …in the resolution process. Configures and manages Linux operating systems and installs/loads operating system software, troubleshoots, maintains integrity ... If so, look no further. Amentum is seeking a ** Linux Administrator , Senior** to join our team...and configures network components. **Requirements:** * Must have active Top - Secret clearance with SCI and Poly *… more
    Amentum (11/21/25)
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  • Linux Administrator

    SMX (Patuxent River, MD)
    Linux Administrator (4874)at SMX(View all jobs) (https://www.smxtech.com/careers/) Patuxent River, MD SMX is looking for a highly motivated Intermediate Linux ... + Deploying and managing all assigned lab devices **Required Skills/Experience** + Clearance Required: Top Secret + Secret required to start + 3+ years… more
    SMX (12/31/25)
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  • Linux Administrator - ACAS

    CACI International (Springfield, VA)
    Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS** who could potentially...vendor updates are received **You'll Bring These Qualifications** + Top Secret /SCI clearance (current), with the ability… more
    CACI International (11/10/25)
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  • Senior Linux /Unix Administrator

    S4 Inc. (Omaha, NE)
    Administrator ; or CompTIA Linux +; or Oracle Certified Professional Oracle Linux System Administrator ; or Red Hat Certified Engineer; or Oracle ... of the following certifications is preferred: ITIL 4 Foundations; Red Hat Certified Systems Administrator ; or Linux Professional Institute Certification … more
    S4 Inc. (01/07/26)
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  • Linux Systems Administrator

    CACI International (Hampton, VA)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... Opportunity:** We are seeking a cleared, skilled and experienced Red Hat Enterprise Linux Administrator with expertise in Puppet configuration management to join… more
    CACI International (12/18/25)
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