• Principal Linux Systems…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Principal Linux Systems Administrator in our **National Security Sector's (NSS) Cyber ... a difference in National Security!** **Job Summary:** Leidos is seeking a Principal Linux Systems Administrator with demonstrated experience supporting… more
    Leidos (07/31/25)
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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 ... user needs + Strong technical skills in areas such as Windows and Linux operating systems , network administration, virtualization, and security + Excellent… more
    ManTech (10/10/25)
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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 (08/18/25)
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  • Systems Administrator…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator Advisor with GDIT. A career in enterprise IT ... operate. At GDIT, people are our differentiator. As a Systems Administrator Senior you will help ensure...plan migration process to support applications hosted by the Windows/ Linux systems . + Complete system security checklists,… more
    General Dynamics Information Technology (09/30/25)
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  • Windows Systems Administrator…

    Northrop Grumman (Annapolis Junction, MD)
    …career. Northrop Grumman's Classified Solutions team is seeking a well-qualified Windows Systems Administrator to join its dynamic team of technical ... but not be limited to the following: + Perform as a Windows/VMware systems administrator for a classified government contract. + Maintain smooth operation… more
    Northrop Grumman (10/14/25)
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  • Principal Systems Engineer

    Insight Global (Arlington, VA)
    Job Description Insight Global is looking for a Principal Systems Engineer to support us in the design and implementation of our cloud infrastructure for a DOD ... -Proficiency with scripting languages (eg, Python, Bash, PowerShell) for system automation. -Proficiency at the administrator level with Windows or Linux servers more
    Insight Global (10/23/25)
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