• Senior Information System Security Officer…

    Innovative Management & Technology Services (Clarksburg, WV)
    …SAFe Agile environments and integrating security in Agile workflows. + Networking, Linux /Windows system administration , and secure software development ... best customers on-site at top government agencies. Job Title: Senior Information System Security Officer (ISSO) Primary Location: Clarksburg, WV - Hybrid Clearance:… more
    Innovative Management & Technology Services (10/29/25)
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  • System Administrator

    ManTech (Annapolis Junction, MD)
    …in relevant technical concepts. + 2 years of demonstrable experience in a system administration role, demonstrating practical knowledge and skills in the field. ... consistent maintenance, configuration, and reliable operation of critical computer systems , network servers, and virtualization environments, upholding system more
    ManTech (09/05/25)
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  • Senior / Principal Windows System

    SciTec (Boulder, CO)
    …and a clear focus on supporting customer needs. Responsibilities + Provide Windows systems administration in multiple heterogeneous Microsoft Windows and Red Hat ... Enterprise Linux environments +...and maintain security policies and procedures to protect Windows systems and data. + Monitor system performance and… more
    SciTec (11/19/25)
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  • TS/SCI High Band System Software Support…

    Insight Global (Beale AFB, CA)
    systems , servers, storage, and network connectivity. You will also manage system administration tasks for assigned infrastructure, maintain system ... Global is looking for a senior level High Band System Support Engineer to join their team at Beale...(Distributed Common Ground Systems ) experience - 5+ years of Airforce SIGINT (Signals Intelligence) experience - Linux /Unix… more
    Insight Global (11/01/25)
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  • IT Systems Engineer

    Polaris Industries (Plymouth, MN)
    …with Linux operating systems such as Red Hat Enterprise Linux or Ubuntu, including system configuration, package management, and basic shell scripting. ... the organization's core infrastructure - including server, storage, virtualization, and identity systems . This role leads the design, administration , and ongoing… more
    Polaris Industries (10/10/25)
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  • Senior Information Systems Security Officer…

    RTX Corporation (Aurora, CO)
    …a safer, more secure world. Our cybersecurity team is seeking a **Information Systems Security Officer (ISSO)** to support our team **100% onsite** at our facility ... You Will Do** + Cybersecurity sustainment activities (hardware change administration , software change administration , account overseeing, media protection,… more
    RTX Corporation (11/18/25)
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  • Sr. Specialist, Network Systems Engineer

    L3Harris (Greenville, TX)
    …in the interest of national security. Job Title: Sr. Specialist, Network Systems Engineering Job Code: 28999 Job Location: Greenville, Texas Schedule: 9/80 This ... The Senior Specialist, Network Engineer (NE) performs technical planning, system integration, verification and validation, and troubleshooting for total … more
    L3Harris (09/25/25)
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  • Senior Systems Engineer

    SOLUTE Careers (Pope, MS)
    …and Linux ). + Troubleshoot and resolve infrastructure issues on Windows and Linux systems for services such as Active Directory, DHCP, DNS, Group Policy ... Sigma Defense is seeking a Senior Systems Engineer willing to tackle complex technical issues...Experience creating design documents and diagrams to support the system design. + Skilled in documenting all build and… more
    SOLUTE Careers (09/26/25)
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  • Information Assurance Administrator

    Leidos (St. Petersburg, FL)
    …to obtain within 6 months + Working knowledge of Windows and Linux systems ; 4+ years Linux administration experience + Experience administering Linux ... audits, conduct vulnerability scans, and support engineers and local users with system administration tasks. You will work closely with US Government IWS6… more
    Leidos (11/11/25)
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  • Systems Administrator

    GovCIO (Fort Bliss, TX)
    …+ Use Agile methodologies such as Scrum and SAFe. + Provide Windows System Administration including Group Policy management, AD replication, AD PowerShell ... SolarWinds, and/or ScienceLogic SL1. **Qualifications** + High School with 10+ years systems administration (or commensurate experience). + Secret Clearance with… more
    GovCIO (10/22/25)
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