• System and Network Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Annapolis Junction, MD)
    System and Network Administrator The Opportunity: A well-designed network is critical to move data and enable organizations to achieve their missions, but how ... world can't wait. You Have: + 10+ years of experience with network or system administration + Experience with Linux , including maintaining RHEL, Rocky or Ubuntu… more
    BOOZ, ALLEN & HAMILTON, INC. (11/23/25)
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  • System Administrator

    ManTech (Fort Meade, MD)
    **ManTech** seeks an experienced and passionate, career and customer-oriented ** System Administrator ** to join our team located in the **Ft. Meade, MD** area. ... environments (VMWare ESX, VCenter Administration) + Experience in administration of Linux / Windows + Experience configuring and maintaining storage and file… more
    ManTech (11/03/25)
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  • Training Simulator System…

    Lockheed Martin (Orlando, FL)
    …controlled facilities\. * Currently possess a current Security \+ certificate\. * System Administration of Windows and/or Linux server environments\. ... position will offer a long\-term deployment to a foreign country as a Training System Simulator System Administrator for the F\-35\. The successful candidate… more
    Lockheed Martin (10/29/25)
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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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  • Principal Storage Administrator

    RTX Corporation (Mckinney, TX)
    …NetBackup, prior systems administration and networking administration experience, Windows or Linux administration, backup, and recovery enterprise suites. ... Implement and support NAS (NFS, SMB/CIFS) protocols + Maintain multiprotocol access ( Windows / Linux ) and configure name-mapping, SMB encryption, and security best… more
    RTX Corporation (10/15/25)
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  • 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 (10/02/25)
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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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  • Sr. Storage Administrator

    CGI Technologies and Solutions, Inc. (Radford, VA)
    …recovery, and common problem resolution. i) Three or more years' experience with MS- Windows , Solaris, and RHEL/OEL Linux environments. j) Three or more years' ... **Sr. Storage Administrator ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia,...m) Installation and configuration experience of backup SW with Windows Server 2019, Solaris 11, RedHat Enterprise Linux… more
    CGI Technologies and Solutions, Inc. (10/29/25)
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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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