• Principal Linux Systems

    RTX Corporation (Tewksbury, MA)
    …only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current ** Principal Linux Systems Administrator 50% on site in ... our systems and support IT infrastructures around the world. ** Principal System Administrators** **,** internally known as Principal Analyst, infrastructure… more
    RTX Corporation (05/22/25)
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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 (05/30/25)
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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)
    …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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  • Sr Principal Linux Systems

    Northrop Grumman (Redondo Beach, CA)
    …You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** **with High Performance Computing (HPC)** ... of multi-user Linux network services. + Providing technical support for Linux systems and associated networks. + Installing, troubleshooting, servicing, and… more
    Northrop Grumman (04/08/25)
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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 (05/21/25)
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  • Principal Linux System…

    RTX Corporation (Aurora, CO)
    …US citizens are eligible for a security clearance​ **Security Clearance:** TS/SCI with Polygraph ** Principal Linux Systems Administrator Aurora, CO, 100% ... a Raytheon program in a classified environment as a ** Principal ** ** Linux System Administrator .** +...GSEC, SSCP, CySA+, CND. + Experience administering Red Hat Linux based systems with minimal support, to… more
    RTX Corporation (05/23/25)
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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 (06/03/25)
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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 ... good working relationships with internal and external stakeholders. This Linux Systems Administrator will be...strong troubleshooting and problem-solving skills **Basic Qualifications for a Principal Systems Administrator ** : +… more
    Northrop Grumman (05/02/25)
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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 (03/25/25)
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  • Principal Systems

    Northrop Grumman (Colorado Springs, CO)
    …-Launch and Missile Defense Systems has an exciting career opportunity for a Principal Systems Administrator (25-229) to join our team of qualified, ... and future missile defense system capabilities. Operate, maintain, and manage Linux -based systems supporting a software development environment. Responsible for… more
    Northrop Grumman (05/17/25)
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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

    Northrop Grumman (Aurora, CO)
    …your future and launch your career today. #definingpossible Northrop Grumman is seeking a Systems Administrator to join our team based in the Aurora, Colorado ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...be limited to, the following: * Perform as a Linux System Administrator on large government contracts.… more
    Northrop Grumman (06/05/25)
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  • Principal Windows Systems

    RTX Corporation (El Segundo, CA)
    …eligible for a security clearance​ **Security Clearance:** TS/SCI with CI Poly - Current ** Principal Systems Administrator - El Segundo, CA -Must have a ... solves tough, meaningful problems that create a safer, more secure world. Principal System Administrator in infrastructure Workplace Services, collaborates with… more
    RTX Corporation (06/10/25)
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  • Sr. Principal Systems

    RTX Corporation (Tucson, AZ)
    …create a safer, more secure world. **What You Will Do:** + Sr. Principal System Administrator , in infrastructure Workplace Services, collaborates with a team ... the server infrastructure in a heterogeneous information system. + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise … more
    RTX Corporation (05/30/25)
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  • Principal High Performance Cluster…

    Northrop Grumman (Baltimore, MD)
    …Grumman Classified Solutions team is seeking a well-qualified **High-Performance Cluster (HPC) Systems Administrator ** to join its dynamic team of technical ... limited to the following: + Perform as primary HPC systems administrator for a large, classified government...or similar configuration management tools. + Strong Knowledge of Linux /Unix operating systems and shell scripting. +… more
    Northrop Grumman (05/17/25)
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  • Principal Systems

    ManTech (Arlington, VA)
    ManTech seeks a motivated, career and customer-oriented ** Principal Systems Administrator ** to join our team in **Pentagon, VA.** The position is **onsite.** ... user needs + Strong technical skills in areas such as Windows and Linux operating systems , network administration, virtualization, and security + Excellent… more
    ManTech (05/24/25)
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  • Principal System Admin ( LINUX

    RTX Corporation (Marlborough, MA)
    …growth opportunity with our DT - Information Workplace Services team for a talented Principal Systems Administrator / Analyst. You will collaborate with a ... security clearance is required. + Minimum 5 years of direct Linux Systems Administration / networking experience with combinations of technologies such as:… more
    RTX Corporation (05/28/25)
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  • Sr Principal Sys Admin - COS IT System…

    Northrop Grumman (Colorado Springs, CO)
    …not limited to security, applications, and OS updates + Make sure all Windows and Linux systems are using the most up-to-date antivirus software with the latest ... offers an exciting career opportunity for a Sr Principal System Administrator - COS IT System...Windows/ Linux server-based applications + Ensure that all Windows/ Linux -based systems have the appropriate patches installed,… more
    Northrop Grumman (06/07/25)
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  • Principal System Administrator

    DCCA (Annapolis Junction, MD)
    Principal System Administrator Location Annapolis Junction, MD Job Code 2270 # of Openings 1 Apply Now ... a competitive compensation and benefits package. Visit our website at: www.dcca.com Principal System Administrator Candidate must have an active TS/SCI w/Poly… more
    DCCA (05/19/25)
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