• 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 ... worldwide to support the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS ** who could potentially be located in either **Springfield,… more
    CACI International (11/10/25)
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  • Assured Compliance Assessment Solution…

    FGS, LLC (Suitland, MD)
    …and troubleshooting issues + Five years of experience administering Red Hat Enterprise Linux , the ACAS host operating system, to include: + Building, patching, ... Assured Compliance Assessment Solution ( ACAS ) Senior AdministratorSuitland, MD **Requires US Citizenship Yes** **Employment Term and Type: Regular, Full Time**… more
    FGS, LLC (11/13/25)
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  • Senior Linux Systems Administrator

    The Boeing Company (Fairfax, VA)
    …the team in **Herndon, VA; Fairfax, VA;** or **Chantilly, VA** . As a Senior Linux Administrator , you will play a crucial role in maintaining and optimizing our ... Linux -based infrastructure, ensuring the stability, security and efficiency of...+ Experience with security and vulnerability scanning tools (eg, ACAS /Nessus, STIG's, SCC) + Experience maintaining enterprise-wide storage and… more
    The Boeing Company (11/19/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …a Systems Administrator or similar role + Strong experience with Linux and Windows-based systems administration. + Knowledge of cloud platforms (AWS, Azure, ... Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Linux ,Microsoft Windows,System Administration **Experience:** 5 + years of related… more
    General Dynamics Information Technology (09/16/25)
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  • Systems Administrator II - Generalist…

    V2X (Springfield, VA)
    …integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Cross Domain - active TS/SCI clearance to ... to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II Cross Domain supports the information technology (IT) Operations and… more
    V2X (11/14/25)
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  • Senior System Integrator Engineer (TS/SCI)

    Vexterra Group (Bethesda, MD)
    …and O&M team members on the following key tasks: DUTIES * Perform Linux builds, installs, configuration, administration, and troubleshooting of both Linux and ... and system patching, performance monitoring, etc. * Provide O/S hardening (STIG, OpenSCAP, ACAS ) and system patching * Develop server builds for virtual and physical… more
    Vexterra Group (10/14/25)
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  • Systems Engineer, Senior

    BOOZ, ALLEN & HAMILTON, INC. (Fort Meade, MD)
    …use your technical expertise in support of cyberspace operations? As a Systems Administrator , you'll have the chance to build your expertise and solve technical ... customer-focused database solutions in support of our warfighters. As a Systems Administrator on our team, you'll establish and manage networks in support of… more
    BOOZ, ALLEN & HAMILTON, INC. (11/06/25)
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  • Splunk Security Engineer

    Leidos (Suitland, MD)
    …Operational products such as Active Directory, DNS, FWs (packet flows), Email, ACAS , Trellix/Tanium, Splunk, STIGs, Windows/ Linux and the standard services ... and Nessus, VMWare vCenter/ESXi, ServiceNow, Azure and AWS, NetApp, Windows and Linux . Connectors may use APIs, tokens, or service accounts, so understanding these… more
    Leidos (11/11/25)
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  • Cyber Security Specialist 4

    M. C. Dean (Springfield, VA)
    …system environments including Windows Server and workstation and Redhat Enterprise Linux (RHEL) as well as virtual environments including VMWare, Hyper-V, Nutanix, ... and Authorizations, including, but not limited to: Evaluate STIG, eMASSter, Vulnerator, ACAS / TenableSC, STIG Viewer, SCAP Compliance Checker, eMASS, Xacta / Xacta… more
    M. C. Dean (10/10/25)
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