• ATR Arena Technical Resources (Charleston, SC)
    Job Description System Administrator Location: N. Charleston SC Clearance: Top Secret Job Summary We are seeking a highly motivated and experienced System ... will have a strong background in managing and optimizing Windows -based systems , application servers, and Oracle databases,...DISA STIGs, NIST 800-53, or RMF. Security Clearance * Top Secret * Work onsite in North… more
    job goal (12/11/25)
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  • Tyto Athene (Santa Barbara, CA)
    **Description** Tyto Athene is searching for a ** Systems Administrator /Information System Security Officer** to join our CA team. **Responsibilities:** + Provide ... support. **Qualifications** **Required:** + 3or more years of hands-on Systems Administration experience including Windows based computers,...+ Onsite support is required. **Clearance:** + Active DoD Top Secret or Top more
    DirectEmployers Association (12/06/25)
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  • COLSA Corporation (Huntsville, AL)
    Join our team as a Linux Systems Administrator , where you will support and manage a diverse mix of workstations, servers, and high-performance computing (HPC) ... to 12 years of related experience + Active DoD Top Secret Clearance with SCI eligibility +...experience in Linux environments. + Cross-OS administration experience with Windows . + Virtualization experience with VMWare or Nutanix. +… more
    DirectEmployers Association (10/02/25)
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  • COLSA Corporation (Huntsville, AL)
    …as the technical lead for a diverse infrastructure environment. The role spans Windows systems , Nutanix virtualization, Linux (RHEL), and enterprise storage. The ... a fast-paced, complex environment. + Support, configure, and troubleshoot Windows 11 and Windows Server environments (AD,...Minimum of 8 years related experience + Active DoD Top Secret Clearance with SCI eligibility; US… more
    DirectEmployers Association (09/21/25)
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  • Infinity Systems Engineering (Colorado Springs, CO)
    …WE ARE MORE - now, come be more with us! Job Summary: The Systems Administrator is responsible for the maintenance, configuration, and reliable operation of ... system performance and security, and providing technical support to internal users. The Systems Administrator will work closely with the IT team to ensure… more
    DirectEmployers Association (12/05/25)
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  • Argonne National Laboratory (Lemont, IL)
    …granted by the US Department of Energy (DOE). It's functionally equivalent to a ** Top Secret clearance** , allowing access to information classified up to that ... Argonne has an opportunity to serve as the System Administrator of the classified National Security Systems ...software upgrades. + Experience with the administration of common Windows Server Domain Services such as Active Directory, DNS,… more
    DirectEmployers Association (11/22/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …- now, come be more with us! Job Summary: We are seeking a skilled Systems Administrator /Network Engineer to join our mission-driven team. This position offers a ... secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms...to support IT projects and initiatives. Qualifications: + Clearance: TS /SCI CI Poly + Education: 4+ years' experience and… more
    DirectEmployers Association (12/03/25)
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  • Tyto Athene (Ashburn, VA)
    …Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. +...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
    DirectEmployers Association (11/01/25)
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  • Linux/ Windows Systems

    COMSO, Inc (Columbia, MD)
    Linux/ Windows Systems Administrator II ( TS /SCI...Alaska. We are honored to be recognized as a Top Workplace for seven years running by the Baltimore ... Sun Media Group. Currently, we are seeking aSystems Administrator IIto join our Team! ** Must have active...established Standard Operating Procedures (SOPs). + Build and configure Windows Server 2019 and 2022 systems from… more
    COMSO, Inc (11/27/25)
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  • Principal Windows Systems

    Northrop Grumman (Gilbert, AZ)
    …Chief Information and Digital Office (CIDO) organization is seeking an experienced **Principal Windows Systems Administrator ** to join its dynamic team of ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of...be limited to the following: + Perform as a Windows System Administrator for a classified government… more
    Northrop Grumman (12/12/25)
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