• High Performance Computing (HPC) System…

    RTX Corporation (Tucson, AZ)
    …to lead and support the engineering community. + Perform OS tuning to maximize system performance on high performance computing systems . Work across DT functions ... are eligible for a security clearance. + Experience in Windows and/or Linux Server Environments including directory services management, and system hardening. +… more
    RTX Corporation (07/13/25)
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  • Principal Systems Administrator

    RTX Corporation (Tucson, AZ)
    …for a security clearance​ **Security Clearance:** DoD Clearance: Secret **Principal Systems Administrator- 100% onsite, Tucson, AZ, must have active secret ... technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. **Principal System **… more
    RTX Corporation (06/26/25)
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  • System Administrator - TS Clearance

    RTX Corporation (Tucson, AZ)
    …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,...complexity to include the integration of hardware and operating systems (OS). + Experience with data RAID, data backup… more
    RTX Corporation (07/08/25)
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  • Senior Information Systems Engineer…

    RTX Corporation (Tucson, AZ)
    …years of Windows and/or Linux systems administration experience (operating systems in desktop and server environments) + Excellent troubleshooting ability ... world. The Test Equipment Engineering **(TEE)** includes engineering disciplines responsible for systems design & test with every Raytheon product. Our engineers are… more
    RTX Corporation (06/21/25)
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  • Senior Linux System Administrator

    RTX Corporation (Tucson, AZ)
    …for a security clearance​ **Security Clearance:** DoD Clearance: Secret **Senior Linux System Administrator Tucson, AZ. Must have an active secret clearance we offer ... technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. **Senior System … more
    RTX Corporation (07/18/25)
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  • System Administrator

    RTX Corporation (Tucson, AZ)
    …secure world. **What You Will Do:** + Experience administering Linux based systems to include patching, performance tuning, networking, user management, and security ... hardening. + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat...and Redhat Enterprise Linux environment. + Experience with Windows Server internals or Linux fundamentals to include DNS, DHCP,… more
    RTX Corporation (07/22/25)
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  • Principal Information Systems Engineer…

    RTX Corporation (Tucson, AZ)
    …The Test Equipment Engineering **(TEE)** includes the engineering disciplines responsible for systems design & test with all Raytheon products. Our engineers are ... the development lifecycle for test including: test requirements, test system design, flight simulations, hardware-in-the-loop, computer-in-the-loop, advanced engineering prototyping… more
    RTX Corporation (06/27/25)
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  • Sr. Systems Administrator

    RTX Corporation (Tucson, AZ)
    …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,...complexity to include the integration of hardware and operating systems (OS). + Must be able to obtain Department… more
    RTX Corporation (06/26/25)
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  • Senior Software Systems Quality Engineer

    RTX Corporation (Tucson, AZ)
    …world. We have an immediate need for an "onsite" **Senior** **Software Systems Quality Engineer** (Quality Assurance/Compliance) to support Land & Air Defense ... Systems (LADS). The successful candidate must reside within 50...review of SW Release Packages (Windchill PDM, Azure DevOps Server ), CDRL Deliverables (IR, CN, ECP), SW Investigation Requests… more
    RTX Corporation (07/13/25)
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  • Information System Analyst

    Lockheed Martin (Glendale, AZ)
    …to systems \. Acquires and submits metrics for review, documents system anomalies and submits relative data to appropriate organizations for analysis and ... Must have demonstrated experience in the following: Virtualization, VMWare/Vsphere, Windows Server 2012, Windows 10 Operating systems , event log management,… more
    Lockheed Martin (07/19/25)
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