• Principal Linux Administrator

    RTX Corporation (El Segundo, CA)
    …Hat Enterprise Server, Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration and networking administration experience, Windows or ... US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our… more
    RTX Corporation (09/24/25)
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  • System Administrator Multi-Disciplined

    RTX Corporation (El Segundo, CA)
    …create a safer, more secure world. **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux ... US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our… more
    RTX Corporation (09/24/25)
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  • System Administrator

    ManTech (Eglin AFB, FL)
    **MANTECH** seeks a motivated, career and customer-oriented **System Administrator ** to join our Air Force / Space team at **Eglin AFB** . The System ... Administrator 's primary function is to support the United States...are not limited to:** + Determining hardware, software, and systems specifications, and configuration requirements. + Execution of the… more
    ManTech (10/14/25)
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  • Endpoint Security as a Service (ESS) Engineer/…

    Leidos (Washington, DC)
    …- where innovation meets mission.** **What You'll Do** As an ESS Engineer and Administrator , you won't just maintain systems - you'll _elevate_ them. You'll be ... driven Endpoint Security as a Service (ESS) Engineer and Administrator to join our team at the Washington Navy...ESS deployments and policy rollouts across local and remote systems . + Conducting threat analysis and crafting custom security… more
    Leidos (10/03/25)
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  • Cleared Senior System Administrator

    General Atomics (Durham, NC)
    …in! General Atomics Integrated Intelligence is looking for an experienced Cleared System Administrator with a Top Secret /SCI clearance to provide on-site support ... equipment + Install and maintain software applications on various Linux and Windows -based operating systems + Provide routine hardware and software support… more
    General Atomics (09/11/25)
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  • Specialist, Network Administrator

    L3Harris (Rochester, NY)
    …accreditation, etc.) + Active Cisco CCNA (or equivalent) certification + Familiarity with Windows and Linux systems + Ability to function independently with ... domains in the interest of national security. Job Title: Specialist, Network Administrator Job Code: 28210 Job Location: Rochester, NY Job Schedule: 9/80: Employees… more
    L3Harris (09/13/25)
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  • Principal System Administrator

    RTX Corporation (Tucson, AZ)
    …complex IT infrastructure problems. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux ... as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted… more
    RTX Corporation (10/02/25)
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  • Senior PKI Administrator

    GovCIO (Arlington, VA)
    **Overview** GovCIO is currently hiring for a SeniorPKI Administrator with an active Secret clearance to issue and maintain a federal customer's Public Key ... a related field such as Public Key Infrastructure, Infrastructure IT ( Systems Administration, Network Administration, Windows /Linux OS, Network Administration,… more
    GovCIO (09/04/25)
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  • System Administrator

    General Dynamics Information Technology (Annapolis Junction, MD)
    …involved in the resolution process. Configures and manages UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, ... of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job Family:** IT… more
    General Dynamics Information Technology (10/15/25)
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  • Deployable Network Communications Engineer - Top…

    Northrop Grumman (GA)
    …and special projects. Your role will require a solid understanding of Microsoft Windows Server 2016/ 2019, Workstation operating systems , end-user support in an ... ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 50% of the Time **Description** At...approach, and patience with customers. + Performing as a Windows System Administrator for a classified government… more
    Northrop Grumman (10/09/25)
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