• Senior Principal Linux Administrator

    RTX Corporation (El Segundo, CA)
    …only US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret At Raytheon, the foundation of everything we do is ... You Will Do** + We are seeking an experienced Linux Administrator that will be working in...years experience. + Active and transferable US government issued Top Secret security clearance is required prior… more
    RTX Corporation (09/26/25)
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  • IT Linux Systems…

    SpaceX (Hawthorne, CA)
    IT Linux Systems Administrator - Top Secret Clearance Hawthorne, CA Apply SpaceX was founded under the belief that a future where humanity is out ... on Mars. IT LINUX SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE...both formal and informal situations. ADDITIONAL REQUIREMENTS: + Active Top Secret or TS /SCI with… more
    SpaceX (08/08/25)
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  • Senior Linux System…

    BAE Systems (San Diego, CA)
    …BAE Systems . BAE Systems is seeking a Senior Closed Area Linux Systems Administrator to provide comprehensive technical and operational support for ... Skills** US Citizenship is required by contract. Active US Top Secret Security Clearance / SCI is...available based on position level and/or job specifics. **Senior Linux System Administrator ** **116453BR** EEO… more
    BAE Systems (09/18/25)
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  • Principal Linux System…

    General Dynamics Information Technology (Livermore, CA)
    …Description:** $10K Sign-on bonus A Principal Linux System Administrator Maintains an organization's computer systems ' workflows and is responsible for ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other...hardware upgrades. + Core Systems : Domain Controllers, Linux servers, DNS, VMware, HPE Blade System ,… more
    General Dynamics Information Technology (08/09/25)
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  • Sr Principal HPC Linux Systems…

    Northrop Grumman (Redondo Beach, CA)
    …We Want You!** The Northrop Grumman Classified Solutions team is seeking a senior ** Linux Systems Administrator ** to join its dynamic team of technical ... Qualifications:** + Bachelor's degree in Information Technology + Active Top Secret , TS /SCI, Polygraph, or...an administrator for Red Hat or similar Linux systems within a DoD context +… more
    Northrop Grumman (09/11/25)
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  • Principal Linux Systems…

    RTX Corporation (El Segundo, CA)
    …meaningful problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the...for a security clearance. + Must have experience with Linux systems administration + Experience with one… more
    RTX Corporation (09/09/25)
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  • Sr. Linux Systems…

    RTX Corporation (El Segundo, CA)
    …with Linux system administration. **Qualifications We Prefer** : + Active Top Secret security clearance is preferred. + Experience with Linux and ... 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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  • IT Systems Administrator…

    SpaceX (Hawthorne, CA)
    IT Systems Administrator - Top Secret Clearance Hawthorne, CA Apply SpaceX was founded under the belief that a future where humanity is out exploring the ... enabling human life on Mars. IT SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE...authentication/identification environments. + Experience with networking technologies and the Linux operating system environment. + PowerShell (or… more
    SpaceX (07/12/25)
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  • Systems Administrator , Sr…

    Lockheed Martin (Sunnyvale, CA)
    …folders within a Windows and Linux environment **Basic Qualifications:** * Active Top Secret Clearance * Current Security \+ Certification \(or other DoD ... **Description:** **This position requires an active Top Secret ** **clearance\. All work will...compliant certification\) * Demonstrated experience with Windows Server and Linux operating systems * Demonstrated experience with… more
    Lockheed Martin (09/04/25)
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  • Top Secret System…

    Insight Global (El Segundo, CA)
    Job Description One of Insight Global's aerospace clients is looking for System Administrator to join our Space Systems Verification and Test team in El ... Administrator experience with 2/3 of the following operating systems : Linux , Redhat Linux , Windows,..., Redhat Linux , Windows, Cisco IOS * Top Secret (SSBI would be preferred) *… more
    Insight Global (09/12/25)
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