• Windows / Principal Windows…

    Northrop Grumman (Annapolis Junction, MD)
    …of your career. Northrop Grumman Mission Systems is seeking an experienced Windows Systems Administrator to join its Classified Solutions team in Annapolis ... workstations along with associated networks. + Install, harden, and patch Windows operating systems . + Configure, deploy, and harden thick, thin, and zero client… more
    Northrop Grumman (08/29/25)
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  • Principal Systems Administrator…

    V2X (Springfield, VA)
    …respect, responsibility, and professionalism. We have a great opportunity for a Principal Systems Administrator - active TS/SCI clearance in Springfield, VA. ... the ability to obtain and maintain a Counterintelligence (CI) Polygraph. The Principal Systems Administrator serves as the in-house technical Subject Matter… more
    V2X (08/22/25)
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  • LINUX Sr Principal Systems Engineer…

    General Dynamics Information Technology (Washington, DC)
    …experience **US Citizenship Required:** Yes **Job Description:** Job Description **Senior Principal Systems Engineer - Linux** Design, deploy, integrate and ... Linux technologies to advance the mission as a **SENIOR PRINCIPAL SYSTEMS ENGINEER** with GDIT. Your work...Linux Systems (currently, RHEL 7/8 and Ubuntu systems ) into a primary Windows environment (workstations… more
    General Dynamics Information Technology (06/25/25)
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  • Principal Linux Systems…

    Leidos (Annapolis Junction, MD)
    …in Ansible scripting for automation and provisioning + Foundational experience in Windows Systems Administration + Hands-on exposure to virtualization tools ... **Description** **Leidos** has a new and exciting opportunity for a Principal Linux Systems Administrator in our **National Security Sector's (NSS) Cyber &… more
    Leidos (07/31/25)
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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 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 Engineer - Active…

    General Dynamics Information Technology (Washington, DC)
    …years of related experience **US Citizenship Required:** Yes **Job Description:** **Senior Principal Systems Engineer** Seize your opportunity to make a personal ... None **Job Family:** IT Infrastructure and Operations **Skills:** Complex Systems ,Encryption,Hardware Security,Microsoft Windows Server, Systems Engineering...impact as a Senior Principal Systems Engineer with GDIT. A career… more
    General Dynamics Information Technology (08/09/25)
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  • Principal Network Systems Engineer

    Saliense Consulting (Arlington, VA)
    …design, implementation, documentation, and troubleshooting of the enterprise server environment. The Principal Systems Engineer must have the ability to manage ... of the full benefits package. Saliense is now hiring a Senior Technical Consultant ( Principal Network Systems Engineer) to join our team in support of our… more
    Saliense Consulting (07/07/25)
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  • Principal Cyber Security Systems…

    ManTech (Chantilly, VA)
    MANTECH seeks a motivated, career-driven ** Principal Cyber Security Systems Engineer** to join our team in **Chantilly, VA** . This role offers an exciting ... including Juniper, Cisco, F5, and similar platforms + Administering and troubleshooting Windows , Linux, and vendor appliance-based systems to ensure high… more
    ManTech (08/29/25)
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  • Principal Information Systems…

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for Principal Information Systems Security Engineer (ISSE) in our **National Security Sector's ... system security officers (ISSOs). Flexible cross-training to also provide systems engineering, software development, training, security, and testing is also… more
    Leidos (08/01/25)
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