• Classified Systems Administrator

    KBR (Huntsville, AL)
    Title: Classified Systems Administrator KBR - Delivering Solutions, Changing the World. KBR is a global leader in delivering technology-driven, mission-critical, ... technology, deep domain expertise, and cutting-edge technologies. KBR is seeking a Classified Systems Administrator to join our Corporate IT team in Huntsville,… more
    KBR (12/16/25)
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  • Linux Systems Administrator II

    Epsilon, Inc (Phoenix, AZ)
    …shared during your recruiter conversation. **Responsibilities** **An average day:** AsLinux Systems Administrator II, you will support the reliability, security, ... needed. + Follow security and compliance requirements, coordinating with cybersecurity teams when necessary. + Participate in on-call after...this position.)_ + 2-4 years of experience as a Systems Administrator or related IT role, with… more
    Epsilon, Inc (12/03/25)
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  • Senior Information Systems

    Concurrent Technologies Corporation (Huntsville, AL)
    Senior Information Systems Administrator Concurrent Technologies Corporation Huntsville, AL Minimum Clearance Required: Top Secret Clearance Clearance Level Must ... and machine learning, cloud architecture and security, cross domain solutions, cybersecurity , edge node technology, synthetic environments, and more. We are honored… more
    Concurrent Technologies Corporation (10/19/25)
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  • Principal PKI & MMS Administrator

    BAE Systems (Vicksburg, MS)
    …**Join a Team that's Shaping the Future of IT Support** At BAE Systems , we're dedicated to delivering innovative solutions that make a meaningful impact. As ... a **Principal PKI & MMS Administrator ** , you'll play a critical role in supporting...Experience, & Skills** + Bachelor's degree in Information Technology, Cybersecurity , Computer Science, or a related field (or equivalent… more
    BAE Systems (11/18/25)
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  • Systems Administrator 3 - 23829 (FS…

    Huntington Ingalls Industries (Fort Meade, MD)
    …environments. This role requires a strong understanding of various operating systems , networking principles, virtualization technologies, and cybersecurity best ... TS/SCI with Poly Level of Experience: Mid This opportunity resides with Warfare Systems (WS), a business group within HII's Mission Technologies division. Warfare … more
    Huntington Ingalls Industries (10/07/25)
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  • Systems & Network Administrator

    Leidos (Riverside, CA)
    **Description** ** Position Overview** Leidos is seeking a **Network & Computer Systems Administrator ** to join our team at March Air Reserve Base, CA. In this ... managers and client leadership on progress. ** Primary Responsibilities** As a Systems Administrator , you will: + Manage and maintain enterprise-level… more
    Leidos (12/24/25)
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  • System Administrator - Windows

    Electrosoft (Atlanta, GA)
    …workplace, please apply and share in the many benefits and opportunities we offer. Systems Administrator - Windows Position Summary: We are seeking a highly ... skilled and experienced Systems Administrator - Windows to support a...Required Qualifications: + Bachelor's degree in Computer Science, Information Systems , Cybersecurity , or related field (or equivalent… more
    Electrosoft (01/01/26)
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  • Principal Linux Systems

    RTX Corporation (Aurora, CO)
    …program in a classified environment as a **Principal Linux System Administrator in Aurora, CO.** Responsibilities include building, maintaining, and securing ... Information Technology systems and directly supporting customer mission-critical capabilities. + You will work closely with program developers and system engineers… more
    RTX Corporation (12/29/25)
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  • Systems Administrator , Windows

    RTX Corporation (Tewksbury, MA)
    …high scope and complexity to include the integration of hardware and operating systems (OS). + Work with Cybersecurity professionals to maintain security ... complex IT infrastructure problems._ **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux… more
    RTX Corporation (12/29/25)
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  • Systems Administrator 1

    Huntington Ingalls Industries (Wright Patterson AFB, OH)
    …Huntington Ingalls Industries, Technical Solutions Division (HII-TSD) is currently seeking a Systems Administrator . The ideal candidate works well in an agile, ... Secret Level of Experience: Entry Level This opportunity resides with Warfare Systems (WS), a business group within HII's Mission Technologies division. Warfare … more
    Huntington Ingalls Industries (12/25/25)
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