• Raytheon Technologies (Mckinney, TX)
    systems administration and networking administration experience, Windows or Linux administration, Windows administration, or Mac OS experience, backup, and ... optimization. Supervising administrators whose duties may include setting up administrator and service accounts, maintaining system documentation, tuning system… more
    Upward (07/14/25)
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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 (05/13/25)
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  • Linux Principal Windows…

    Serco (Kirtland AFB, NM)
    **Position Description** Serco is seeking a Linux Principal Windows Systems Administrator to join our team supporting the Defense Systems sector at ... other legally protected characteristics. Click here to apply now (https://careers-sercous.icims.com/jobs/69556/ linux - principal -windows- systems - administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834477830) **New to… more
    Serco (05/17/25)
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  • Linux Systems Administrator

    Northrop Grumman (Wright Patterson AFB, OH)
    …are not only part of history, they're making history. Northrop Grumman is seeking a Linux Systems Administrator / Principal Systems Administrator ... Wright Patterson Air Force Base in Dayton, OH. This Linux Systems Administrator will be...strong troubleshooting and problem-solving skills **Basic Qualifications for a Principal Systems Administrator ** : +… more
    Northrop Grumman (07/03/25)
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  • Linux Systems Administrator

    Northrop Grumman (Wright Patterson AFB, OH)
    …employees are not only part of history, they're making history. Northrop Grumman is seeking a Linux Systems Administrator to maintain and enhance Linux ... DevOps CI/CD pipelines. You will be primarily focused on Linux Systems Administration and be prepared for...with an active TS/SCI clearance **Basic Qualifications for a Principal Systems Administrator :** + Bachelor's… more
    Northrop Grumman (05/29/25)
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  • Principal Linux Systems

    Northrop Grumman (Aurora, CO)
    …We Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** 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 (06/25/25)
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  • Principal Linux Systems

    Northrop Grumman (Melbourne, FL)
    …We Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** 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 (07/08/25)
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  • Principal Linux Systems

    Northrop Grumman (Linthicum Heights, MD)
    …will include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate ... work of your career. Northrop Grumman Classified Solutions is seeking a well-qualified Linux Administrator to join its dynamic team of technical professionals in… more
    Northrop Grumman (07/02/25)
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  • Principal Linux System…

    Northrop Grumman (Huntsville, AL)
    …they're making history. Northrop Grumman Defense Systems is seeking a well-qualified Principal Linux Systems Administrator to join our dynamic ... be limited to the following: **Basic Qualifications for a Principal Systems Administrator :** + Bachelor's...experience + Minimum of three years of experience with Systems Administration for Linux Operating Systems more
    Northrop Grumman (07/15/25)
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  • United States Postal Service (USPS) Incumbent…

    General Dynamics Information Technology (Fairfax, VA)
    … + Cisco ISE Engineer + DNS/DHCP Network Engineer + Microsoft Power BI Developer + Principal Unix/ Linux Systems Administrator + VPN Network Engineer + ... Packaging Engineer + Client Support Administrator + Mail Processing Equipment Systems Administrator + Multi-Factor Authentication (MFA) Engineer + OKTA … more
    General Dynamics Information Technology (07/24/25)
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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 (07/10/25)
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  • Principal System Administrator

    Themis Insight (Fort Meade, MD)
    …Public and Private, Civilian and Military expertise to every case. We are hiring a Principal System Administrator ( Linux ) to work in Ft. Meade, MD vicinity. ... and remains involved in the resolution process. Configures and manages UNIX, Linux and Windows operating systems and installs/loads operating system software,… more
    Themis Insight (07/26/25)
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  • Sr. Principal Linux System…

    RTX Corporation (Aurora, CO)
    …are eligible for a security clearance​ **Security Clearance:** TS/SCI with Polygraph **Sr. Principal Linux System Administrator , Aurora, CO, must have active ... Raytheon program in a classified environment as a Senior Principal Linux System Administrator . +...SSCP, CySA+, CND. + Experience administering Red Hat Enterprise Linux (RHEL) based systems + Experience using… 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 Linux System…

    RTX Corporation (El Segundo, CA)
    …required, as only US citizens are eligible for a security clearance. + Linux and/or Windows systems administration experience. **Qualifications We Prefer:** + ... + CompTIA Security+ certification or other industry-recognized certifications relevant to a Linux System Administrator + BASH Scripting + ITIL Foundations and/or… more
    RTX Corporation (07/03/25)
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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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  • Principal / Sr. Principal

    Northrop Grumman (Colorado Springs, CO)
    …they're making history. Northrop Grumman Defense Systems is seeking a well-qualified Principal Systems Administrator / Sr. Principal Systems ... be limited to the following: + Perform as primary Linux Systems Administrator for a...a dynamic environment, apply today!_ **Basic Qualifications** : + Principal : Master's Degree with 3 years of IT experience;… more
    Northrop Grumman (07/23/25)
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  • Principal Systems

    Northrop Grumman (Colorado Springs, CO)
    …-Launch and Missile Defense Systems is offering an exciting opportunity for a Principal Systems Administrator (25-292) to join our team of skilled and ... capabilities of the missile defense system. Operate, maintain, and manage Linux -based systems supporting a software development environment. Responsible for… more
    Northrop Grumman (07/11/25)
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  • Sr Principal Systems

    Northrop Grumman (Aurora, CO)
    …the warfighter. Come be a part of our mission. Northrop Grumman is seeking a **Sr Principal Systems Administrator ** to join our team at our facility in ... be limited to, the following:** + Perform as a Linux and Windows System Administrator on large...+ Solid understanding of remediating security vulnerabilities; Experience hardening Linux systems in accordance with RMF and… more
    Northrop Grumman (06/12/25)
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  • Principal Systems

    RTX Corporation (Tucson, AZ)
    …are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret ** Principal Systems Administrator - 100% onsite, Tucson, AZ, must ... our systems and support IT infrastructures around the world. ** Principal System** **Administrators,** internally known as Principal Analyst, infrastructure… more
    RTX Corporation (06/26/25)
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