Senior Systems Administrator

Location

Tucson, AZ

On‑site, 100% full time. Requires active U.S. Secret clearance and U.S. citizenship. Must obtain DoD Directive 8140 / 8570 certification (CompTIA Security+ CE or equivalent) within 6 months.

• Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment.
• Work with Windows Server internals or Linux fundamentals, including DNS, DHCP, AD and server replication.
• Collaborate as part of a team in a fast‑paced technological environment.
• Troubleshoot technical problems of moderate to high scope and complexity, including hardware and operating system integration.

• University degree or equivalent experience and at least 2 years of relevant experience, or an advanced degree in a related field.
• Active and transferable U.S. Secret security clearance.
• U.S. citizenship.
• Experience with Windows and/or Linux.

• Containerization technologies such as Open Shift, Kubernetes, Docker, Tanzu, and Rancher.
• Continuous integration/continuous delivery tools such as Git Lab, Jenkins, and Azure Dev Ops.
• Experience with NISPOM, JAFAN, JSIG, DFARS, DoD/RMF, data storage, NAS, and SAN technologies.
• Experience with VMware vCenter, vSphere, ESXi, or other virtual computing methods.
• Experience with Microsoft WSUS, MECM, and/or Exchange.
• High Performance Computing (HPC) experience in a Linux environment.

• Competitive salary range: 68,900 USD – 131,100 USD.
• Benefits including medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, employee assistance program, employee scholar program, parental leave, paid time off and holidays.
• Potential eligibility for annual incentive compensation programs.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status or any other applicable protected class. RTX provides affirmative action for qualified individuals with a disability and protected veterans in compliance with the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.