• Principal Systems

    BAE Systems (Merrimack, NH)
    …Other incentives may be available based on position level and/or job specifics. ** Principal Systems Administrator ** **113660BR** EEO Career Site Equal ... BAE Systems is seeking a highly trained and motivated Principal Closed Area Systems Administrator to lead and manage classified IT infrastructure… more
    BAE Systems (06/19/25)
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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 ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (06/12/25)
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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.** ... software, network, and application issues + Manage and maintain computer systems , servers, and other IT infrastructure, ensuring optimal performance and security… more
    ManTech (05/24/25)
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  • Principal Systems

    SAIC (Colorado Springs, CO)
    **Description** SAIC's Horizon 2 contract is seeking an energized and professional ** Principal ** ** Systems Administrator ** to support the contract's secure ... **Colorado Springs, CO** . Your background in configuring, maintaining, and troubleshooting systems in both Windows and Linux environments will be the driving force… more
    SAIC (04/10/25)
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  • Principal Systems

    Leidos (Chantilly, VA)
    …Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Principal Systems Administrator to join a new cyber security program ... and play a key role in supporting government-critical systems . You will be part of a program that oversees development, integration, delivery, and operations and… more
    Leidos (03/29/25)
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  • Linux Systems Administrator

    Northrop Grumman (Wright Patterson AFB, OH)
    …days + US citizenship with an active TS/SCI clearance **Basic Qualifications for a Principal Systems Administrator :** + Bachelor's degree in a Science, ... of history, they're making history. Northrop Grumman is seeking a Linux Systems Administrator to maintain and enhance Linux Systems and Infrastructure in… more
    Northrop Grumman (05/29/25)
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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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  • 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) Cyber ... with lasting impactful results. Join our team as a **Linux Systems Administrator ** , where you'll provide crucial support for the implementation,… more
    Leidos (05/30/25)
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  • Linux Principal Windows Systems

    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 Serco?** Join… more
    Serco (05/17/25)
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  • Principal Cyber Systems

    Northrop Grumman (Tampa, FL)
    …best work of your career. We are looking for you to join our team as a Principal Cyber Systems Administrator based out of Tampa, FL. _Please Note:_ + _Due ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (06/20/25)
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