• System Administrator

    TekSynap (Arlington, VA)
    …QUALIFICATIONS** + Bachelor's degree in IT, Computer Science, or related. + 5+ years system administration ( Linux / Windows ) in hybrid or cloud environments. + ... IAT Level II (Security+ CE minimum). + Active Secret clearance. **COMPETENCIES** + System provisioning & administration ( Linux / Windows ) + CNCF ecosystem… more
    TekSynap (12/31/25)
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  • Server Administrator II

    CAE USA INC (Tampa, FL)
    …+ Provides support for cloud-based infrastructure components (ie, VM Instance based Linux or Windows Servers). + Conducts Monitoring of utilization, performance ... professional development, advancement and having fun! Summary The Server Administrator II participates in all aspects of design, analysis, implementation… more
    CAE USA INC (11/18/25)
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  • Systems Support Administrator

    Pearson (Baltimore, MD)
    **Position Summary:** Pearson Virtual Schools (PVS), is hiring a Systems Administrator , local to Baltimore Maryland, who will join the team who manages our ... required for both internal and external customers + Administer and troubleshoot Windows (workstation and server), ChromeOS and ChromeOS Flex operating systems ,… more
    Pearson (01/08/26)
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  • Systems Administrator

    Arena Technical Resources, LLC (Springfield, VA)
    Systems Administrator Location: Springfield, VA, US Job ID: ATR 17769 Job Description Job Title: Systems Administrator Location: Springfield, VA ... systems administration, or similar support role. - Working knowledge of Windows and Linux server administration and basic understanding of networking,… more
    Arena Technical Resources, LLC (01/16/26)
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  • Network/ Systems Administrator

    Argonne National Laboratory (Lemont, IL)
    Argonne has an opportunity to serve as the System Administrator of the classified National Security Systems (NSS) for the Security Programs Facility (SPF). ... software upgrades. + Experience with the administration of common Windows Server Domain Services such as Active Directory, DNS,...Veeam, or similar enterprise backup solutions. + Familiarity with Linux Server Operating Systems such as RHEL,… more
    Argonne National Laboratory (11/22/25)
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  • NCIS Cyber Systems Administrator

    General Dynamics Information Technology (Quantico, VA)
    …Required:** Yes **Job Description:** Transform technology into opportunity as a **Cyber Systems Administrator - SecOps** at GDIT in Quantico, VA. Shape ... + **Required Experience:** + 5+ years of experience with systems administration: + DoD system accreditation process...LOVE FOR YOU TO HAVE:** + ACAS Management + LINUX Systems Administration Experience (SPLUNK) + Forescout… more
    General Dynamics Information Technology (12/08/25)
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  • Server Administrator

    Calspan (Buffalo, NY)
    …user access in Active Directory/Entra ID, ensuring seamless authentication for both Windows and Linux /HPC environments (via LDAP/SSSD). + Storage Management ... Overview Calspan is seeking a highly skilled Server Administrator to manage our core infrastructure and High Performance Computing (HPC) environments. This role is… more
    Calspan (01/17/26)
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  • TSSCI Systems Administrator (Level…

    Insight Global (Louisville, CO)
    Job Description An aerospace company in Louisville, CO, is looking for a Top Secret Systems Administrator (Level 2) to join their growing classified IT team. In ... hardware and software. Their environment is a mix of Windows and Linux , and you will also... administration 1- years of experience support RHEL and Windows operating systems Well versed with Active… more
    Insight Global (11/22/25)
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  • IT Systems Administrator

    ManTech (Chantilly, VA)
    …to obtain one within 180 days. + System Experience: Experience with both Windows and Linux operating systems . + End-User Support: Experience providing ... **MANTECH** seeks a motivated, career and customer-oriented **IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include but… more
    ManTech (11/19/25)
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  • Systems Administrator / Diads / Sam…

    Lockheed Martin (Nellis Air Force Base, NV)
    …forefront of cutting\-edge technology and engineering\. Lockheed Martin is seeking a Systems Administrator to develop, integrate, and operate DIADS and ... current and update versions of DIADS on various operating platforms \(i\.e\., Windows , Linux , Red Hat, web\-based\)\. * Orchestrate and operate constructive… more
    Lockheed Martin (11/09/25)
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