• Fidelis Administrator - Active TS/SCI…

    ENS Solutions (Reston, VA)
    …Experience automating deployments and configuration management. + Experience as a network administrator or systems engineer. + Experience in using Active ... innovative solutions to enable secure and reliable operations of enterprise computer systems . Develop new concepts and processes and analyze root causes and resolve… more
    ENS Solutions (12/27/25)
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  • Senior Network Administrator

    ManTech (Key West, FL)
    …certifications. **Desired Qualifications:** + Master's degree in a network engineering, cybersecurity , or information systems , or a related field. Experience ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Network Administrator ** to join our team in **Key West, FL** . **Responsibilities include but… more
    ManTech (12/30/25)
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  • Linux Administrator - ACAS

    CACI International (Springfield, VA)
    Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of ... contract with the National Geospatial-Intelligence Agency (NGA) for Transport & Cybersecurity Services (TCS) contract. The functional capabilities are to provide the… more
    CACI International (11/10/25)
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  • Sr. Systems Administrator

    RTX Corporation (Tucson, AZ)
    …technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. **Senior System ... Administrator ** , internally known as Senior Analyst, Information Workplace...infrastructure problems. **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat… more
    RTX Corporation (12/29/25)
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  • Advisory Systems Administrator

    Frontier Technology Inc. (Los Angeles, CA)
    …read/write PowerShell scripts Preferred: + Bachelor's degree in Information Technology, Cybersecurity , or Information Systems from an ABET-accredited or ... more about you. We are hiring an Advisory System Administrator to support one of our United States Navy...applications, and providing ongoing support and administration of the systems . Take the next step in your career and… 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 ... are not limited to:** + Provide hands-on O&M support for enterprise systems , including break-fix resolution and routine sustainment tasks + Monitor system… more
    ManTech (12/13/25)
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  • Intermediate Classified Systems

    The MITRE Corporation (Bedford, MA)
    …Department Summary: MITRE's Classified Enterprise Infrastructure is looking for a Junior Systems Administrator . A successful candidate will be delivering timely, ... the government create lasting impact in fields as diverse as cybersecurity , healthcare, aviation, defense, and enterprise transformation. We're making a difference… more
    The MITRE Corporation (11/01/25)
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  • Linux Dev/Ops Systems Administrator

    Synergy ECP (Annapolis Junction, MD)
    Linux Dev/Ops Systems Administrator 1 (SW support) Annapolis Junction, MD (http://maps.google.com/maps?q=Annapolis+Junction+MD+USA) Description We are searching ... MD, our talented, dedicated staff provide a broad range of services in cybersecurity , software, data transport solutions, systems engineering, and IT services to… more
    Synergy ECP (10/22/25)
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  • Virtual Platform Administrator

    TekSynap (MA)
    …+ Create and maintain accurate system documentation for assigned systems , including tracking changes to virtualized infrastructure configurations. + Assist ... capacity planning, performance monitoring, and tuning for assigned virtualized systems . + Participate in virtualization disaster recovery planning, supporting fault… more
    TekSynap (11/15/25)
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  • Mid Level Linux Administrator

    Integration Innovation, Inc. (i3) (Huntsville, AL)
    Overview i3 is seeking a Mid-Level Linux Systems Administrator to support an Army Contract. The Mid-Level Linux Systems Administrator will provide ... security clearance. Responsibilities + Build, configure, and maintain standardized Linux Operating Systems (such as RHEL 9) in various technical use cases. + Build… more
    Integration Innovation, Inc. (i3) (10/28/25)
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