• Sr. Linux Systems

    RTX Corporation (Richardson, TX)
    …supporting a Raytheon program in a classified environment as a **Sr. Linux System Administrator ** . Responsibilities include building, maintaining, and securing ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the...Information Technology systems and directly supporting customer mission-critical capabilities. + You… more
    RTX Corporation (11/19/25)
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  • Principal Linux Systems

    RTX Corporation (El Segundo, CA)
    …US citizens are eligible for a security clearance. + Must have experience with Linux systems administration + Experience with one of the following: Solaris, ... solve complex IT infrastructure problems. **What You Will Do:** + Provide IT systems administration in a heterogeneous Redhat Enterprise Linux and Microsoft… more
    RTX Corporation (12/05/25)
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  • Principal Linux Systems

    RTX Corporation (Richardson, TX)
    …supporting a Raytheon program in a classified environment as a **Principal** ** Linux System Administrator in Richardson, TX.** Responsibilities include building, ... required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly At Raytheon, the foundation of everything we do is… more
    RTX Corporation (12/05/25)
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  • Linux Systems Administrator

    ManTech (Laurel, MD)
    …with JIRA ticketing system **Clearance Requirements:** + Must have a current active Top Secret /SCI with Polygraph **Physical Requirements:** + The candidate must ... **MANTECH** seeks a motivated, career and customer-oriented ** Linux ** **System Administrator ** to join our...and resolution of problems + Provide support to IT systems including day-to-day operations, monitoring, and problem resolution for… more
    ManTech (11/26/25)
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  • 337 - Senior Linux Systems

    ARSIEM (Annapolis Junction, MD)
    …every client you work with. ARSIEM is looking for a motivated and experienced Linux System Administrator for a small, diverse team that provides end-to-end ... software, systems , and network engineering services to support Integrated Discovery...Date: 2025-10-29 Clearance Requirement: This position requires an active TS /SCI with a polygraph. You must be a US… more
    ARSIEM (10/30/25)
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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …Nightwing is seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and ... large scale configuration management and deployment across Windows, MacOS, Linux /Unix, and other operating systems and virtual...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    Nightwing (11/26/25)
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  • Linux Systems Administrator

    Lockheed Martin (Huntsville, AL)
    … Clearance to start, with the ability and willingness to obtain and maintain DOD Top Secret clearance, with the ability to maintain that clearance throughout the ... 6 months of starting the position * Experience with Linux /UNIX Server and Desktop Operating Systems \(i\.e\....* VMware experience \(VSphere vCenter, ESXi, KVM\) * Active Top Secret Clearance **Security Clearance Statement:** This… more
    Lockheed Martin (11/20/25)
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  • Senior Linux System Administrator

    Parsons Corporation (Aberdeen, MD)
    …possible. **Job Description:** _Parsons is looking for an amazingly talented_ **_Senior Linux Systems Administrator_** _to join our team!_ **_What You'll Be ... + Linux + certification (or equivalent) + Security+ certification (or equivalent) + Top Secret clearance **Security Clearance Requirement:** An active Top more
    Parsons Corporation (11/15/25)
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  • Systems Administrator (Unix/…

    EPS Corporation (Dahlgren, VA)
    Systems Administrator (Unix/ Linux ) - (759) Share this job as a link in your status update to LinkedIn. Job Title Systems Administrator (Unix/ Linux ... Technology Job Description EPS Corporation is seeking a highly skilledSenior Systems Administrator (Unix/ Linux )to support enterprise-level networks and… more
    EPS Corporation (11/13/25)
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  • Alternate CRO Cyber Systems

    SAIC (Kirtland AFB, NM)
    …audits and assessments. + Minimum 1 year of proven work experience as a Linux systems administrator , Red Hat-based distributions preferred. + Practical ... SAIC is looking for an experienced **Alternate CRO Cyber Systems Administrator ** with a systems ...and data safeguards. **Qualifications** **This is you:** + Active Top Secret Clearance with SCI eligibility, and… more
    SAIC (12/03/25)
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