• Principal Linux Administrator

    RTX Corporation (Tucson, AZ)
    …to join our RTX **Enterprise Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized Enterprise ... eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret **Job Description** RTX Corporation is an Aerospace and...infrastructure with a focus on Linux -based systems. The role involves working under the supervision… more
    RTX Corporation (01/15/26)
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  • Principal Linux Administrator

    RTX Corporation (Tucson, AZ)
    …to join our RTX **Enterprise Services** team: **Role Overview:** RTX is seeking a Principal Linux Administrator to support a highly virtualized Enterprise ... for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret Job Description RTX Corporation is an Aerospace and...infrastructure with a focus on Linux -based systems. The role involves working under the supervision… more
    RTX Corporation (12/12/25)
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  • Sr. Principal Storage & Data Protection…

    RTX Corporation (Tucson, AZ)
    …create end-of-end solutions to solve complex DT infrastructure problems. As a **Senior Principal level System Administrator ,** this role will require a seasoned ... as only US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current At Raytheon, the foundation of everything we do is rooted in… more
    RTX Corporation (12/05/25)
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  • Principal System Administrator

    RTX Corporation (Tucson, AZ)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything we do is rooted ... integrity of our systems and support IT infrastructures around the world. ** Principal System Administrators** , internally known as Principal Analyst,… more
    RTX Corporation (12/29/25)
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  • Senior Principal System…

    RTX Corporation (Tucson, AZ)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** Top Secret - Current At Raytheon, the foundation of everything we do is rooted in ... of our systems and support IT infrastructures around the world. **Sr. Principal System Administrators,** internally known as Sr. Principal Analyst,… more
    RTX Corporation (01/15/26)
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  • System Engineer Senior

    General Dynamics Information Technology (Fort Huachuca, AZ)
    …your technology expertise and drive for innovation to GDIT. The Systems Administrator Principal must have: * Education: Technical Training, Certification(s) or ... you advance your career. Join GDIT as a Systems Administrator Senior and build an impactful career in enterprise...Cisco Certified Network Associate (CCNA), or Red Hat / Linux . * Security clearance level: Secret *… more
    General Dynamics Information Technology (12/05/25)
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