• 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 & ... and more. Your role will involve configuring and managing UNIX and Windows operating systems , troubleshooting, maintaining network integrity, and enhancing… more
    Leidos (08/11/25)
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  • Principal Systems Administrator…

    Northrop Grumman (Colorado Springs, CO)
    …-Launch and Missile Defense Systems offers an excellent opportunity for a Principal Systems Administrator - Helpdesk Sys Admin (25-501) to join our team ... group additions + Experience in system administration for both Windows Server and Linux operating systems +...for both Windows Server and Linux operating systems + Experience with troubleshooting and resolving technical issues… more
    Northrop Grumman (10/04/25)
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  • Principal Systems Engineer

    Leidos (Fort Meade, MD)
    …us and make a difference in National** **Security!** **Job Summary** As a Principal Systems Engineer, you will be responsible for designing, implementing, and ... **Leidos** has a new and exciting opportunity for a Principal System Engineer in our **National Security Sector's (NSS)...maintaining enterprise-level systems that support mission-critical operations. You will work with… more
    Leidos (09/09/25)
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  • Principal Systems Administrator

    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.** ... ability to obtain within 6 months of hire + Knowledge of Microsoft Windows Systems , HP SANs, VMware products + Experience using a Service Desk ticketing system,… more
    ManTech (10/10/25)
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  • C2 Systems Integration Principal

    SAIC (Hampton, VA)
    **Description** SAIC is seeking a C2 Systems Integration Principal based in Hampton, VA! Responsibilities include, but are not limited to + Leading or supporting ... Technical Implementation Guide (STIG) assessment results + Comfort navigating Operating Systems ( Windows Server and Client, Linux), Application Servers, and… more
    SAIC (10/04/25)
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  • Principal Systems DevOps Engineer

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Principal Systems Engineer in our **National Security Sector's (NSS) Cyber & Analytics ... in National Security!** We are seeking a highly skilled ** Principal Systems DevOps Engineer** with expertise in...This role requires a deep understanding of Linux and Windows environments, Agile methodologies, and the ability to implement… more
    Leidos (10/09/25)
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  • Principal Endpoint Security Systems

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity a ** Principal Endpoint Security Systems Engineer** in our **National Security Sector's (NSS) Cyber ... mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan… more
    Leidos (08/29/25)
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  • Principal /Sr Principal Engineer…

    Northrop Grumman (Dulles, VA)
    …Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations ... our team of qualified, diverse individuals in the Space Systems organization developing space flight software platforms for NSS...all levels. This position can be filled as a Principal (level 3) or Sr Principal (level… more
    Northrop Grumman (09/30/25)
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  • Principal Linux 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 many ... and create end-to-end solutions to solve complex IT infrastructure problems. ** Principal System Administrators** collaborate with teams to support exciting, critical… more
    RTX Corporation (09/09/25)
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  • Sr Principal Space Systems Engineer

    Northrop Grumman (Colorado Springs, CO)
    …only part of history, they're making history. Northrop Grumman is seeking a Sr Principal Space Systems Engineer to work onsite at Schriever SFB, near Colorado ... 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 (09/20/25)
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