Open role
Principal System Administrators- active Secret and 4th shift!
This position supports Raytheon’s Digital Technology and Workplace Services functions by operating and improving classified computing environments. Responsibilities include server and workstation administration, Red Hat deployment, storage and backup management, authentication, virtualization, software configuration, and resolving complex infrastructure issues. The administrator will partner with program teams and cybersecurity personnel to develop compliant solutions, documentation, and operational procedures for 24/7 systems. It suits an experienced infrastructure professional who is comfortable across Windows and Linux platforms, enjoys collaborative technical problem-solving, and can work a Friday-through-Sunday schedule with an additional weekday shift. Candidates must be U.S. citizens with an active Secret clearance and be prepared to work fully onsite in Tucson.
Requirements
Listed September 16, 2026 · Verify details with the employer before applying.
About RTX (Raytheon)
Tucson houses Raytheon's missile and defense HQ producing precision-guided systems, and has flight-tested an AI/ML-powered Radar Warning Receiver.