• Public Key Infrastructure (PKI) Security…

    Tetrad Digital Integrity LLC (Falls Church, VA)
    …networks, firewalls) in an enterprise environment + Infrastructure IT ( Systems Administration, Network Administration Windows/ Linux OS, Network Administration, ... vulnerabilities in this digital age. We are currently recruiting for a Senior level Public Key Infrastructure (PKI) Security Administrator. PKI enables secure… more
    Tetrad Digital Integrity LLC (08/08/25)
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  • IT Networking and HW Administrator

    Leidos (Lorton, VA)
    …both test systems and equipment. + Work with minimal supervision to provide support in both the operation of test systems and the maintenance of ... set up and configure both hardware and software-based test systems such as Linux based computers. +...for ordering new equipment. + Collaborate with engineers and senior technicians to improve test processes and support more
    Leidos (06/08/25)
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  • OCONUS Field Engineer - TS/SCI Polygraph Required

    Leidos (Chantilly, VA)
    …to manage offline operating system repositories, apply operating system updates, provide support for virtual machines and troubleshoot Linux issues + Scripting ... **Description** We are seeking mid to senior field engineers to join our international team...ideal candidate will have prior experience as either a systems engineer or systems administrator. Prior OCONUS… more
    Leidos (08/08/25)
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  • Field Engineer

    ManTech (Reston, VA)
    …Engineer** will travel worldwide to deploy, configure, upgrade, troubleshoot, and maintain systems , train technical support personnel to perform maintenance on ... those systems , and remotely support system troubleshooting and maintenance when not traveling. **Responsibilities...time. **Basic Qualifications:** + 1+ years of experience with Linux administration experience with Red Hat Enterprise Linux more
    ManTech (06/11/25)
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  • AWS Cloud Ops Engineer

    CGI Technologies and Solutions, Inc. (Reston, VA)
    …globe. **Your future duties and responsibilities:** Under minimal supervision, provide operations support for office or business unit users of proprietary or custom ... will require some work during non-traditional business hours to support large scale cloud platforms that support ...and enhance important software tools; seek ways to enhance systems operations, with a focus on automation and minimizing… more
    CGI Technologies and Solutions, Inc. (07/23/25)
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  • Mission IT Operator

    CACI International (Springfield, VA)
    …for all site issues. This position requires broad knowledge of both Windows and Linux -based systems across a global environment. Shift Work (12 hours a day ... IT Operator supporting a 24x7 government mission. You will provide direct support for detecting, isolating, and resolving ground segment problems; and serve as… more
    CACI International (07/31/25)
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  • Enterprise Management Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    …from others to ensure the team's success Required Skills - Experience with Linux systems in the areas of system administration troubleshooting, integration, ... ATR 17255 Job Description Description Enterprise Management Engineer is needed to support Data Center Service in support of installation, administration,… more
    Arena Technical Resources, LLC (08/10/25)
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  • Cybersecurity Implementation Engineer

    CACI International (Springfield, VA)
    …and cloud-based cybersecurity infrastructure and applications running on Windows and Linux operating systems ** **Engineer and implement cybersecurity solutions ... security principles, compute, storage, and transport.** **Expertise in Windows and Linux server operating systems .** **Excellent writing and communication… more
    CACI International (08/08/25)
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  • Windows System Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …plan migration process to support applications hosted by the Windows/ Linux systems . + Complete system security checklists, patches, upgrades, configuration, ... Family:** Systems Administration **Skills:** Information Technology (IT) Systems ,System Administration,System Security,Technical Support **Experience:** 10 +… more
    General Dynamics Information Technology (07/30/25)
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  • Enterprise Logging Solution (ELS) Lead

    TekSynap (Ashburn, VA)
    …organization + Experience in an enterprise IT environment as an applications or systems administrator working in Windows and Linux environments + Experience with ... **Responsibilities & Qualifications** **ACTIVITIES & RESPONSIBILITIES** Support the analysis of the current logging capabilities. Ensure that systems within new… more
    TekSynap (06/03/25)
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