• Specialist, System Administration - TS/SCI…

    L3Harris (Rochester, NY)
    …IAT level I or higher approved certification. + Strong knowledge of Windows operating systems , networking protocols, PowerShell, and security best practices. + ... Subject Matter Expert responsible for the configuration and maintenance of Windows systems while ensuring system reliability, data integrity, and availability. +… more
    L3Harris (09/27/25)
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  • SME Network and Computer Systems

    GovCIO (Alexandria, VA)
    …hybrid remote position. **Responsibilities** Establishes and maintains smooth operation of computer systems (to include operating systems , software and ... hardware) in networked or stand-alone configurations, maintains system integrity, and upgrades systems and/or servers as required. May create and document new… more
    GovCIO (11/15/25)
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  • Control Systems Engineer/Inspector Senior…

    Concurrent Technologies Corporation (HI)
    CONTROL SYSTEMS ENGINEER/INSPECTOR SENIOR SME Concurrent Technologies Corporation MCB Hawaii Minimum Clearance Required: Secret Clearance Level Must Be Able to ... ensure our installations and assets are prepared in any operating environment, present and future. The ERS Division is...small team to secure and defend Facility Related Control Systems supporting Marine Corps critical infrastructure. The Control … more
    Concurrent Technologies Corporation (11/13/25)
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  • SIGINT Systems Administrator (Mid-Band…

    CACI International (Beale AFB, CA)
    …and maintain system security. You will also apply security patches and operating system upgrades to ensure the security and integrity of the technical ... SIGINT Systems Administrator (Mid-Band Journeyman) Job Category: Information Technology...procedures to ensure appropriate function of hardware, software, or system functional specifications. Additionally, you will analyze, troubleshoot, and… more
    CACI International (11/12/25)
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  • Systems Administrator

    Robert Half Technology (Nashville, TN)
    …hardware and software, including Windows Server, Linux, or other relevant operating systems . + Network Management: Oversee network infrastructure, ensuring ... Description Robert Half is currently seeking a Contract Systems Administrator to join our client's IT department....to work with a reputable company. Key Responsibilities: + System Maintenance: Perform routine system maintenance, including… more
    Robert Half Technology (11/12/25)
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  • SIGINT Systems Admin (High-Band Senior)

    CACI International (Beale AFB, CA)
    …and maintain system security. You will also apply security patches and operating system upgrades to ensure the security and integrity of the technical ... SIGINT Systems Admin (High-Band Senior) Job Category: Information Technology...procedures to ensure appropriate function of hardware, software, or system functional specifications. Additionally, you will analyze, troubleshoot, and… more
    CACI International (11/07/25)
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  • L3 Linux Systems Administrator

    Belcan (Cincinnati, OH)
    …ensure all high-level escalation items are completed. Tier 3 resources will ensure that system hardware, operating systems , software systems , and related ... L3 Linux Systems Administrator Job Number: 360935 Category: -Software &...to obtain successfully. Job Duties: Subject Matter Expertise in system administration and support for Linux workstations/servers/OS, in classified… more
    Belcan (10/29/25)
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  • Information Systems Security Engineer…

    Amentum (Fort Meade, MD)
    …of classified and sensitive data. * Demonstrated proficiency with the following computer operating systems (eg Microsoft Windows, LINUX, UNIX, Mac OS, etc.) * ... look no further. Amentum is seeking a **Principal Information Systems Security Engineer** to join our team of passionate...methods are defined and implemented. * Validate and verify system security requirements and establish system security… more
    Amentum (10/23/25)
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  • Systems Engineer

    TekSynap (AZ)
    …and cloud hosting solutions. + Ensure cloud hosting environments, hosted resources, operating systems , software systems , and related procedures comply ... and administration of commercial cloud provider (CCP) solutions, including Windows and RHEL operating systems . + Manage enterprise database systems (eg,… more
    TekSynap (11/15/25)
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  • Assistant Information Systems Engineer…

    City and County of San Francisco (San Francisco, CA)
    …data backup, data migration and disaster recovery operations. 5. Assists with software and operating system upgrades and track system licensing. 6. Assists ... Knowledge of antivirus software (eg, McAfee) * Knowledge of systems security & ability to implement system ... systems (eg, NetApp) * Knowledge of various operating systems (eg, Windows 7 XP) *… more
    City and County of San Francisco (11/07/25)
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