• Subcontracts Administrator

    KBR (Chantilly, VA)
    Title: Subcontracts Administrator Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. + Collaborative Environment: Be part of a dynamic team… more
    KBR (12/18/25)
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  • Systems Administrator III - Complaince

    Sierra Nevada Company, LLC (Dayton, OH)
    …. We are seeking a highly skilled and detail-oriented Systems Administrator III - Compliance to join our dynamic IT team. The ... + Proven organizational skills with an attention to detail + Understanding cybersecurity principles and best practices as is relates to industry compliance standards… more
    Sierra Nevada Company, LLC (12/18/25)
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  • System Administrator Lead

    System One (Mclean, VA)
    Job Title: System Administrator Lead Location: Arlington, Virginia Type: Contract To Hire Contractor Work Model: Onsite Security Clearance: Top Secret w/ SCI ... oversight. * Implements and enforces DISA STIGs, RMF controls, and DoD cybersecurity requirements. * Documents SOPs and system configurations to support continuity… more
    System One (12/18/25)
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  • Advisory Systems Administrator

    Frontier Technology Inc. (Los Angeles, CA)
    …the opportunity to learn more about you. We are hiring an Advisory System Administrator to support one of our United States Navy customers. This individual will have ... PowerShell scripts Preferred: + Bachelor's degree in Information Technology, Cybersecurity , or Information Systems from an ABET-accredited or NCAE-designated… more
    Frontier Technology Inc. (12/18/25)
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  • Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled **Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support a ... vulnerability scans, apply security patches, and ensure adherence to established cybersecurity standards + Contribute to DevOps and Agile processes by supporting… more
    ManTech (12/13/25)
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  • Principal Linux Administrator (Top Secret…

    RTX Corporation (Richardson, TX)
    …in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity . The company, formed in 2020 through the combination of Raytheon ... Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized Enterprise infrastructure with a focus… more
    RTX Corporation (12/12/25)
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  • Linux System Administrator

    The Boeing Company (Seal Beach, CA)
    …Security (BDS), Space and Launch Organization seeks an early career **Linux System Administrator ** to support Proprietary Programs in Seal Beach, CA. You will assist ... the work statement. **Preferred Qualifications (Desired Skills/Experience)** : + ** Cybersecurity ** experience or knowledge. + **Threat management** experience or… more
    The Boeing Company (12/07/25)
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  • Principal Storage & Data Protection System…

    RTX Corporation (Marlborough, MA)
    …systems in Classified areas. **What You Will Do** : + System Administrator for Storage and Data Protection, across a geographically distributed, mission-critical ... a cross-functional collaboration, and deep problem-solving, between Digital Technology, Cybersecurity , Engineering, HPC, Tools, and Program customers, translating storage… more
    RTX Corporation (12/05/25)
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  • System Administrator

    Parsons Corporation (Centreville, VA)
    …experience + CompTIA Security+ Minimum + Proven experience as a System Administrator in a classified environment, preferably within the intelligence community or ... By combining unique technologies with deep domain expertise across cybersecurity , missile defense, space, connected infrastructure, transportation, smart cities, and… more
    Parsons Corporation (12/04/25)
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  • Systems Administrator

    KBR (Honolulu County, HI)
    Title: Systems Administrator Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions ... of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. + Collaborative Environment: Be part of a dynamic team… more
    KBR (12/04/25)
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