• Senior Network and Computer Systems

    NANA Regional Corporation (South Burlington, VT)
    We are seeking an experienced Senior Network and Computer Systems Administrator to lead the administration, security, and optimization of the USCIS ... + Microsoft Certified: Azure Administrator /Architect. + Red Hat Certified System Administrator (RHCSA). + VMware Certified Professional (VCP). + AWS… more
    NANA Regional Corporation (10/16/25)
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  • Senior Linux Systems

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... will involve configuring and managing UNIX and Windows operating systems , troubleshooting, maintaining network integrity, and enhancing system performance.… more
    Leidos (10/09/25)
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  • Senior Systems Administrator

    Chenega Corporation (Arlington, VA)
    **Req ID:** 38512 **Summary** ** Senior Systems Administrator ** **Arlington, VA** Are you ready to enhance your skills and build your career in a rapidly ... national security and economic interests of our nation. SecuriGence is seeking a talented ** Senior Systems Administrator ** to help contribute to our success.… more
    Chenega Corporation (12/10/25)
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  • Senior IT / System

    R&D Industries, Inc. (Milford, IA)
    …expected to have leading-class knowledge of hardware, software, networking, and security. A Senior Systems & Network Engineer should have years of experience ... Position Overview Our Senior IT / System Administrators &...of VLANs and VPNs. Required Competencies: * Server operating systems , up to Windows Server 2025 *… more
    R&D Industries, Inc. (09/17/25)
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  • Senior Systems Administrator

    TEKsystems (Terre Haute, IN)
    …maintain licensing of multiple products. * (5%) Performs other duties as assigned Skills System administrator , Windows , Vmware, Windows server, Azure, ... administration, Server administrator , Scripting Top Skills Details System administrator , Windows ,Vmware, Windows server,Azure,Active directory… more
    TEKsystems (12/06/25)
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  • Mid/ Senior System

    Belay Technologies (Annapolis Junction, MD)
    …The SA configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and ... a finalist in 2021! Belay Technologies is seeking a System Administrator (SA) to join our intel...AWS Experience + VPC, EC2, S3 + Linux and Windows operating systems + CentOS, RedHat, … more
    Belay Technologies (11/19/25)
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  • Senior Linux System

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Linux System Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD (Onsite) Position Overview: The Senior Linux ... System Administrator is responsible for leading system administration activities. This position oversees the installation, configuration, maintenance, and… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Senior Cloud System

    ManTech (Hanover, MD)
    ManTech seeks a motivated, career- and customer-oriented **Sr** **Cloud System Administrator ** to join our team in **Hanover, MD.** Our team delivers enterprise ... **Minimum Qualifications:** + 20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs...Active Directory and networking + Proven experience as a System Administrator or Cloud Engineer with practical… more
    ManTech (12/10/25)
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  • Senior Systems Administrator

    Alaka'ina Foundation Family of Companies (Kauai County, HI)
    Senior Systems Administrator (Linux) Location HI - Kaua'i Job Code 13533 # of openings 1 Apply Now ... Foundation Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range...OS Certifications required: Linux, Linux+ or Red Hat Certified System Administrator (RHCSA) Certification required prior to… more
    Alaka'ina Foundation Family of Companies (11/20/25)
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  • Senior Systems Administrator

    NANA Regional Corporation (Albuquerque, NM)
    We are seeking an experienced Senior Systems Administrator - Server Operations Lead to support a mission-critical IT security program within a Federal ... environments. + Work with multiple operating systems ( Windows , Linux, etc.) to maintain system interoperability....required for consideration. + Minimum 3 years as a Senior Systems Administrator within the… more
    NANA Regional Corporation (11/14/25)
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