• Senior System Administrator

    SimIS Inc. (Dahlgren, VA)
    …team), and importance of others (work and win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to ... complex computer system network administration activities. + Experience in Microsoft Windows computer operating systems , LINUX operating systems , CISCO … more
    SimIS Inc. (11/06/25)
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  • Senior Systems Administrator

    PingWind INC (Doral, FL)
    Senior Systems Administrator - SCITES Doral, FL (http://maps.google.com/maps?q=Doral+FL+USA) Job Type Full-time Description Location:Doral, Florida Required ... Administration or a related IT career field Seeking an IT Microsoft Systems Administrator to help maintain the USSOUTHCOM Enterprise System in Doral FL. They… more
    PingWind INC (11/12/25)
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  • Senior Linux System

    ManTech (Fort Meade, MD)
    ManTech seeks a ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will provide support for implementation, ... troubleshooting, and maintenance of IT systems , as well as manage IT system ...system planning. + Configure and manage Linux and Windows operating systems ; install, load, and enhance… more
    ManTech (12/24/25)
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  • Sr . Cyber Architect

    General Dynamics Information Technology (Washington, DC)
    …experience * Desired Technical skills: Experience with various Operating Systems (Linux/ Windows /MacOS), various scripting languages (Python/Perl/Shell, etc); ... + years of related experience **US Citizenship Required:** Yes **Job Description:** Sr . Security Architect Advance your career while impacting our national security… more
    General Dynamics Information Technology (12/15/25)
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  • Systems Administrator Senior

    Lockheed Martin (Fayetteville, NC)
    **Description:** You will be the Systems Administrator Senior for our team\. Our team is responsible for delivering elite IT services-including hardware and ... DoD‑approved enclave\. **What You Will Be Doing** As the Systems Administrator Senior , you will...certification in relevant programs desired\. * Advanced knowledge of Windows Server /desktop Operating Systems \(Win 10\)… more
    Lockheed Martin (12/18/25)
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  • Senior System Administrator

    SAIC (Arlington, VA)
    **Description** SAIC is seeking a motivated and experienced ** System Administrator ** to join our team at the Pentagon in Arlington, VA. **This position is 100% ... SIPR environment. **Position Overview:** + Manage currently supported and subsequent Windows Server Operating Systems on virtual operating environments,… more
    SAIC (12/13/25)
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  • Senior Systems Administrator

    ManpowerGroup (Bloomington, MN)
    **Job Title: Senior Systems Administrator /Infrastructure Engineer** **Location: Remote** **Pay Range: $70/hr - $85/hr** **Duration: Short Term (3 months)** ... **What's the Job?** ** Senior Systems Administrator / Infrastructure...management. * Strong background in Microsoft Active Directory and Windows Server. * Experience with enterprise storage platforms (Pure… more
    ManpowerGroup (12/20/25)
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  • IT Systems Engineer, Sr / Top Secret…

    Lockheed Martin (King Of Prussia, PA)
    …with network\-attached storage or storage area networks \- Red Hat Certified System Administrator certification equivalent or higher \- VMware Certified ... Microsoft's Windows Server \(i\.e\. 2016, 2019, or 2022\) operating system functions, security policies and technical security safeguards \- Experience with… more
    Lockheed Martin (11/07/25)
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  • Senior ServiceNow Systems

    SAIC (Annapolis Junction, MD)
    …process + Configure and manage UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and ... + Minimum of 14 years of experience as a Systems Administrator in programs and contracts of...ServiceNow with other applications is required Desired: + ServiceNow System Administrator certification + DoD 8570 compliance… more
    SAIC (11/06/25)
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  • Sr . Systems Engineer

    TekSynap (Honolulu, HI)
    Systems Certification (eg, MCSA, Linux, etc) **Overview** We are seeking a Senior Systems Engineer to join our team supportingNetwork Enterprise Technology ... Authorities for CSfC solutions + Configuring Certificate Authority (ISC CertAgent/MS Windows Server/Red Hat Certificate systems ) + Configuring firewalls,… more
    TekSynap (12/20/25)
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