• Principal Linux Administrator

    RTX Corporation (Richardson, TX)
    …to join our RTX **Enterprise Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized Enterprise ... eligible for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret Job Description RTX Corporation is an Aerospace...infrastructure with a focus on Linux -based systems. The role involves working under the supervision… more
    RTX Corporation (12/12/25)
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  • Sr Principal Linux Systems…

    Northrop Grumman (Melbourne, FL)
    …Want You!** The Northrop Grumman Classified Solutions team is seeking an senior ** Linux Systems Administrator ** to join its dynamic team of technical ... to the following: + Maintain the virtual desktop infrastructure and Linux systems supporting Government programs in accordance with established standards, policies,… more
    Northrop Grumman (11/25/25)
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  • Principal Linux Systems…

    Northrop Grumman (Linthicum Heights, MD)
    …work of your career. Northrop Grumman Classified Solutions is seeking a well-qualified ** Linux Systems Administrator ** to join its dynamic team of technical ... be limited to the following: + Perform as primary Linux Systems Administrator for a classified government...system environments + Candidates must have a current DOD ** Top ** **Secret** levelsecurity clearance, to include **SCI access** and… more
    Northrop Grumman (11/19/25)
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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 ... US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret At Raytheon, the foundation of everything we do is rooted in… more
    RTX Corporation (09/26/25)
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  • Sr Principal Linux Systems…

    Northrop Grumman (Boulder, CO)
    …include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively ... Office (CIDO) organization is seeking a highly experienced **Senior Linux Server Admin** to join its dynamic team of...with Certification & Accreditation process and STIGs + Active Top Secret is preferred We offer flexible work arrangements,… more
    Northrop Grumman (12/12/25)
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  • Linux / AWS Systems Administrator

    Northrop Grumman (Morrisville, NC)
    …Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic team of technical ... limited to the following:** + Serve as a senior Linux Systems Administrator within an AWS cloud...**This position may be filled at either level 3 ( Principal level), or level 4 (Sr. Principal more
    Northrop Grumman (11/15/25)
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  • PDM/PLM Application Administrator

    RTX Corporation (Plano, TX)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current **Application System Administrator (PDM/PLM - Windchill) ... - Active TS Clearance required** **Business and Transformation Technologist, Principal Specialist** **Raytheon Digital Technology - Engineering Digital Solutions**… more
    RTX Corporation (11/24/25)
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  • Senior Systems Administrator - Windows/…

    Mount Sinai Health System (New York, NY)
    …science ecosystem for researchers at Mount Sinai. The Administrator is the principal technology expert for Windows and Linux systems, and help support ... data warehouse team and a research data services team. The **_Senior Systems Administrator /Engineer,_** as a member of the Scientific Computing and Data group, is… more
    Mount Sinai Health System (09/22/25)
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  • Principal Windows Systems…

    Northrop Grumman (Gilbert, AZ)
    …Chief Information and Digital Office (CIDO) organization is seeking an experienced ** Principal Windows Systems Administrator ** to join its dynamic team of ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time...to the following: + Perform as a Windows System Administrator for a classified government contract. + Able to… more
    Northrop Grumman (12/12/25)
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  • Principal /Sr. Principal Systems…

    Northrop Grumman (Patuxent River, MD)
    …Northrop Grumman Aeronautics Systems (NGAS) has an exciting career opportunity for a ** Principal /Sr. Principal Systems Administrator ** to join the Ground ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time...for a classified government contract. + Perform as a Linux \Redhat System Administrator for a classified government… more
    Northrop Grumman (12/12/25)
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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 (11/17/25)
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  • Sr Principal Systems Administrator

    Northrop Grumman (Aurora, CO)
    …history, they're making history. Northrop Grumman Space Systems (NGSP) 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...IT experience is required + **Candidate must have active/current Top Secret/SCI clearance with adjudicated Full Scope Polygraph at… more
    Northrop Grumman (11/13/25)
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  • Windows Server Administrator

    Northrop Grumman (Wright Patterson AFB, OH)
    …of history, they're making history. Northrop Grumman is seeking a Windows Server Administrator / Principal Windows Server Administrator to maintain and enhance ... experience or a master's degree with 0 year of relevant experience. + ** Principal Windows Server Administrator (level 3):** Bachelor's degree in a Science,… more
    Northrop Grumman (12/03/25)
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  • Principal Systems Administrator

    Northrop Grumman (Colorado Springs, CO)
    …Grumman Space Systems-Missile Defense Integration offers an excellent opportunity for a Principal Systems Administrator -Helpdesk Sys Admin (25-571) to join our ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time...seeking a detail-oriented and highly motivated Help Desk System Administrator to join our team in Colorado Springs. This… more
    Northrop Grumman (12/05/25)
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  • Sr. Principal Storage & Data Protection…

    RTX Corporation (Tucson, AZ)
    …create end-of-end solutions to solve complex DT infrastructure problems. As a **Senior Principal level System Administrator ,** this role will require a seasoned ... required, as only US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current At Raytheon, the foundation of everything we do is… more
    RTX Corporation (12/05/25)
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  • Principal Windows Systems…

    RTX Corporation (El Segundo, CA)
    …tough, meaningful problems that create a safer, more secure world. ** Principal System Administrator ** in infrastructure Workplace Services, collaborates with ... required, as only US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current At Raytheon, the foundation of everything we do is… more
    RTX Corporation (11/18/25)
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  • Principal Windows Systems…

    Northrop Grumman (Linthicum Heights, MD)
    …your career. Northrop Grumman Mission Systems is seeking a well-qualified Windows Administrator to join its Classified Solutions team in Linthicum, MD. Please note ... limited to the following: + Perform as a primary Windows/VMware systems administrator for a classified government contact. + Maintain smooth operation of multi-user… more
    Northrop Grumman (11/13/25)
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  • Splunk Administrator Principal

    SAIC (New Orleans, LA)
    **Description** SAIC is seeking a **Splunk Administrator ** to support our customer site in **North Charleston, SC** or **New Orleans, LA** . The Splunk ... Administrator will support the Cloud CITI Splunk Team under...and Python for automation + Working knowledge of Windows, Linux , and networking principles + Familiarity with virtualization and… more
    SAIC (11/04/25)
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  • Windows Systems Administrator

    Northrop Grumman (Jessup, MD)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Grumman Mission Systems is seeking an experienced Windows Systems Administrator to join its Classified Solutions team in Annapolis...and 3:** + Candidates must have a current DoD Top Secret level security clearance (adjudicated within the last… more
    Northrop Grumman (12/05/25)
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  • Systems Administrator

    Arena Technical Resources, LLC (Springfield, VA)
    Systems Administrator Location: Springfield, VA, US Job ID: ATR 17769 Job Description Job Title: Systems Administrator Location: Springfield, VA Eligibility: ... our IT Operations career path, with opportunities to grow into senior, principal , and leadership positions as you deepen your technical expertise and operational… more
    Arena Technical Resources, LLC (12/08/25)
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