• Unix/Linux Administrator

    Leader Communications Inc. (Portsmouth, VA)
    …Certified: SharePoint Server Hybrid Administrator Associate, Microsoft Certified: Windows Server Administrator , and CompTIA Security+ are desired + ... Position Summary The Unix/Linux Administrator will play a key role in administering...a key role in administering and securing enterprise Unix/Linux systems , ensuring compliance with DoD cybersecurity standards, and supporting… more
    Leader Communications Inc. (09/23/25)
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  • Senior Linux System Administrator

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    …or MCP + Must meet DoD 8750 and 8140 compliance requirements Technical Environment: + Windows Server + MCEM + MAC OS + RHEL, RedHat Enterprise Virtualization ... years of relevant experience * Certifications (Required): + CompTIA Security+ CE or CompTIA Server + CE + Red Hat Certified System Administrator (RHCSA) + MCSA,… more
    Black Bear Technology Solutions, LLC (08/23/25)
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  • Principal System Administrator

    RTX Corporation (Mckinney, TX)
    …support, with emphasis on testing, documentation, and acceptance phases. + Experience in Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, ... world. **What You Will Do** : + Provide IT systems administration in a heterogeneous RedHat Enterprise/Microsoft Windows...and server replication methods. + Work as a team member… more
    RTX Corporation (10/11/25)
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  • System Administrator Enterprise

    BEAT LLC (San Antonio, TX)
    … Associate or Microsoft Certified: Windows Server Hybrid Administrator Associate Position Description: The Tier 3 Systems Administrator ... Job Title: Enterprise System Administrator - Intermediate (Support Services) Location: San Antonio,...BS degree in Information Technology, Cybersecurity, Data Science, Information Systems , or Computer Science or Military Training or Cloud+… more
    BEAT LLC (09/12/25)
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  • Linux System Administrator /ONSITE

    TEKsystems (Boulder, CO)
    …coordination. This computing environment is heterogeneous consisting of OpenBSD, FreeBSD, Linux and Windows server systems . Many systems are high ... Workspace, Identity Management, RADIUS) and drive Linux-based environments. Provide systems administration in Enterprise Infrastructure and Platforms (EIP). Responsibilities… more
    TEKsystems (10/09/25)
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  • System Administrator Multi-Disciplined

    RTX Corporation (El Segundo, CA)
    Server , Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration and networking administration experience, Windows or Linux ... secure world. **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows ...and a functional understanding of VDI. + Experience with Windows Server internals or Linux fundamentals to… more
    RTX Corporation (09/23/25)
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  • System Administrator (Support Services)

    BEAT LLC (San Antonio, TX)
    … Associate or Microsoft Certified: Windows Server Hybrid Administrator Associate Position Description: The Tier 3 Systems Administrator ... Job Title: System Administrator - Intermediate (Support Services) Location: San Antonio,...BS degree in Information Technology, Cybersecurity, Data Science, Information Systems , or Computer Science or Military Training or Cloud+… more
    BEAT LLC (09/12/25)
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  • Sr. System Administrator

    RTX Corporation (Tucson, AZ)
    Windows and Redhat Enterprise Linux environment. + Understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, ... technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. **Senior System … more
    RTX Corporation (10/03/25)
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  • Senior Principal Linux Administrator

    RTX Corporation (El Segundo, CA)
    …and workstation support. + Experience with troubleshooting, patching, and support Linux, ESXi and Windows Systems . + Work as a team member in a fast-paced ... candidate is responsible for provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Linux/ Windows more
    RTX Corporation (09/26/25)
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  • System Operations/ Administrator

    Sciolex Corporation (Chantilly, VA)
    …in a similar IT support role. Compliant with DoD Directive 8570 Knowledge of Windows and Linux operating systems . CompTIA Security+ or ability to obtain within ... that surpasses the epitome of excellence. Our core services include systems engineering technical advice, technical support, and administrative assistance. From our… more
    Sciolex Corporation (10/14/25)
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