• Senior Linux System Administrator

    GovCIO (Phoenix, AZ)
    **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position ... role, you will work with other members to mitigate vulnerabilities on Linux -based systems , implement STIGs, address POAMs, and mitigate Zero-Day vulnerabilities.… more
    GovCIO (11/07/25)
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  • Unix/ Linux Administrator

    Link Solutions Inc (Sierra Vista, AZ)
    …+ Active DoD Security Clearance + Non- remote (relocation incentive available) The Unix/ Linux Administrator will provide services in support of the US Army ... for CMMI ML3 for Services and Development. Link Solutions Inc. is seeking a Unix/ Linux Administrator (Senior-Level) to join our team in Sierra Vista, Arizona. +… more
    Link Solutions Inc (10/28/25)
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  • Senior Systems Administrator

    RTX Corporation (Tucson, AZ)
    …technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. **Senior System ... Administrator ** , internally known as Senior Analyst, Information Workplace...infrastructure problems. **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat… more
    RTX Corporation (10/16/25)
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  • Unix Administrator

    TekSynap (AZ)
    … Professional Institute Linux Essentials + Microsoft Certified Azure Administrator Associates **Experience** + Seven (7) years systems administration ... designs and implements high availability solutions, and plans data migrations between systems . + Provides technical expertise and assistance to team members as… more
    TekSynap (11/15/25)
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  • Systems Administrator

    U-Haul (Phoenix, AZ)
    …Central Ave, Phoenix, Arizona 85004 United States of America U-Haul is seeking a Systems Administrator to join the IT Site Reliability team supporting virtual ... servers, IIS web servers, network storage, Active Directory, and more. This is a remote position for those outside of Arizona (you must reside in the US). If you… more
    U-Haul (11/06/25)
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  • Senior Systems Administrator

    RTX Corporation (Tucson, AZ)
    …a safer, more secure world. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux ... environment. + Experience with Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server...complexity to include the integration of hardware and operating systems (OS). + Must be able to obtain Department… more
    RTX Corporation (11/13/25)
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  • Principal System Administrator

    RTX Corporation (Tucson, AZ)
    …mission of making the world a safer place. We are currently seeking a Principal Systems Administrator that will be working 100% onsite in a highly collaborative, ... multi-platform and multi-disciplined environment. The Systems Administrator is required to have an...day-to-day activities include but are not limited to: RedHat Linux server management; storage management; file server management; access… more
    RTX Corporation (10/15/25)
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  • System Administrator , High Performance…

    RTX Corporation (Tucson, AZ)
    …for a security clearance​ **Security Clearance:** Secret - Current **System Administrator , High Performance Computing (HPC) - P2** **Senior Analyst Level** ... Administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment. This candidate will understand Windows Server internals, and knowledge… more
    RTX Corporation (10/24/25)
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  • Systems Engineering Tools…

    RTX Corporation (Tucson, AZ)
    …2501 West University , McKinney, TX, 75070 USA **Position Role Type:** Remote **U.S. Citizen, US Person, or Immigration Status Requirements:** US citizenship is ... required, as only US citizens are authorized to access certain necessary systems . **Security Clearance:** None/Not Required At Raytheon, the foundation of everything… more
    RTX Corporation (11/13/25)
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  • AIX Administrator

    ASM Research, An Accenture Federal Services Company (Phoenix, AZ)
    …measurement, tuning, license and asset management to allow automated as well as remote systems management of the server environment. + Provide support to ... other IT Administrators on the project in a senior administrator capacity. Considered a technical specialist in a variety...escalations from Help Desk. + Knowledge and experience troubleshooting Linux and Unix based systems . + Participate… more
    ASM Research, An Accenture Federal Services Company (08/22/25)
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