• Principal Linux Systems

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Principal Linux Systems Administrator in our **National Security Sector's (NSS) Cyber ... a difference in National Security!** **Job Summary:** Leidos is seeking a Principal Linux Systems Administrator with demonstrated experience supporting… more
    Leidos (07/31/25)
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  • Principal Linux Systems

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal Linux Systems Administrator ** in our **National Security Sector's (NSS) ... a mission-critical program with lasting impactful results. Join our team as a ** Linux Systems Administrator ** , where you'll provide crucial support for the… more
    Leidos (08/11/25)
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  • Principal Linux Systems

    Northrop Grumman (Linthicum Heights, MD)
    …best work of your career. Northrop Grumman Classified Solutions is seeking a well-qualified ** Linux Systems Administrator ** to join its dynamic team of ... include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively… more
    Northrop Grumman (08/20/25)
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  • Sr Principal Linux Systems

    Northrop Grumman (Melbourne, FL)
    …We Want You!** The Northrop Grumman Classified Solutions team is seeking a senior ** Linux Systems Administrator ** to join its dynamic team of technical ... include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively… more
    Northrop Grumman (08/08/25)
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  • Northrop Grumman (DoD SkillBridge) - Linux

    Northrop Grumman (Linthicum Heights, MD)
    …**Job Description:** Northrop Grumman's Classified Solutions Team is seeking a well-qualified Linux Systems Administrator to join our dynamic team ... include but not be limited to the following: + Perform as a Linux Systems Administrator for a classified government contract. + Maintain smooth operation… more
    Northrop Grumman (08/01/25)
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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, ... tough, meaningful problems that create a safer, more secure world. ** Principal System Administrator ** in infrastructure Workplace Services, collaborates with… more
    RTX Corporation (09/09/25)
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  • Sr Principal HPC Linux

    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 ... with configuring, administering, and maintaining Red Hat or other Linux systems . **Preferred Qualifications:** + Bachelor's degree...an administrator for Red Hat or similar Linux systems within a DoD context +… more
    Northrop Grumman (09/11/25)
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  • Linux System Administrators Careers

    Northrop Grumman (Redondo Beach, CA)
    … operating systems , workstations, and applications for several program or project areas. ** Principal Linux Systems Administrator ** + Serve as primary ... Report project status as required for all recurring and non-recurring efforts ​ **Sr. Principal Linux Systems Administrator ** + Serve as a Project Lead… more
    Northrop Grumman (09/14/25)
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  • Principal Linux System…

    BAE Systems (Manchester, NH)
    …BAE Systems . BAE Systems is seeking a highly trained and motivated Principal Closed Area Systems Administrator to lead and manage classified IT ... Other incentives may be available based on position level and/or job specifics. ** Principal Linux System Administrator ** **114328BR** EEO Career Site Equal… more
    BAE Systems (09/09/25)
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  • Principal Linux System…

    General Dynamics Information Technology (Livermore, CA)
    …Yes **Job Description:** $10K Sign-on bonus A Senior Linux System Administrator Maintains an organization's computer systems ' workflows and is responsible ... Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Linux ,Microsoft Server Operating Systems ,Microsoft Windows Environment **Certifications:**… more
    General Dynamics Information Technology (08/09/25)
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  • Principal System Administrator

    RTX Corporation (Andover, MA)
    …team solves tough, meaningful problems that create a safer, more secure world. ** Principal System Administrator ** in Program Digital Services, collaborate with a ... a security clearance). + Experience with Microsoft Windows operating systems . + Experience with Red Hat Enterprise Linux... systems . + Experience with Red Hat Enterprise Linux + Experience with secure system configurations, system hardening,… more
    RTX Corporation (09/11/25)
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  • Principal Linux System…

    RTX Corporation (Tewksbury, MA)
    …agility through business innovation, technical proficiency, and operational excellence. ** Principal Linux System Administrators** collaborates with many teams ... + Responsible for provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Linux /Windows… more
    RTX Corporation (08/19/25)
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  • Principal Linux System…

    RTX Corporation (Tewksbury, MA)
    …our systems and support IT infrastructures around the world. Principal System Administrators, internally known as Principal Analyst, infrastructure Workplace ... complex IT infrastructure problems. **Responsibilities to** **Anticipate** : .Provide IT systems administration in a heterogeneous Redhat Enterprise Linux ,… more
    RTX Corporation (08/15/25)
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  • Senior Principal Linux

    RTX Corporation (El Segundo, CA)
    …more secure world. **What You Will Do** + We are seeking an experienced Linux Administrator that will be working in a highly collaborative, multi-platform and ... candidate is responsible for provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Linux /Windows… more
    RTX Corporation (08/29/25)
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  • Sr. Principal Linux System…

    RTX Corporation (Aurora, CO)
    …be supporting a Raytheon program in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, ... SSCP, CySA+, CND. + Experience administering Red Hat Enterprise Linux (RHEL) based systems + Experience using and developing automation tools/frameworks such as… more
    RTX Corporation (07/19/25)
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  • Principal Linux Administrator

    RTX Corporation (El Segundo, CA)
    systems administration and networking administration experience, Windows or Linux administration, backup, and recovery enterprise suites. + Experience with ... secure world. **What You Will Do:** + Provide IT systems administration in a heterogeneous RedHat Enterprise / Microsoft...containers. + Experience with Server, Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, RAID, backup… more
    RTX Corporation (06/23/25)
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  • Principal Systems

    V2X (Springfield, VA)
    …integrity, respect, responsibility, and professionalism. We have a great opportunity for a Principal Systems Administrator - active TS/SCI clearance in ... requires the ability to obtain and maintain a Counterintelligence (CI) Polygraph. The Principal Systems Administrator serves as the in-house technical… more
    V2X (08/22/25)
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  • Senior Systems Administrator

    Mount Sinai Health System (New York, NY)
    Administrator is the principal technology expert for Windows and Linux systems , and help support high-performance computing (HPC) environment in the ... team and a research data services team. The **_Senior Systems Administrator /Engineer,_** as a member of the...and metrics, etc. The infrastructure includes both Windows and Linux systems with file servers in multiple… more
    Mount Sinai Health System (06/24/25)
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  • Swdc MSS Linux Systems

    Northrop Grumman (Colorado Springs, CO)
    …Infrastructure team on the Specialized Warfighter Development Contract (SWDC) program as a Principal Systems Administrator based out of Schriever SFB, CO. ... is not available. What You'll get to Do: The Principal Systems Administrator primary duties...degree * Experience administering and configuring Red Hat Enterprise Linux * Must have CompTIA Security+ with Continuing Education… more
    Northrop Grumman (08/30/25)
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  • Engineer Systems / Principal

    Northrop Grumman (San Diego, CA)
    …Familiarity with additional Linux based distributions. + Red Hat Certified Systems Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) preferred. ... Aeronautics Systems has an opening for a ** Systems Engineer/ Principal Systems Engineer**...to travel up to 25%. **Basic Qualifications for a Linux Systems Engineer:** + Experience in install… more
    Northrop Grumman (08/15/25)
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