Sr. Systems Administrator

Onsite IT Systems Administrator position at RTX supporting mission-critical defense systems in Tucson, AZ. The role requires U.S. citizenship and an active, transferable DoD Secret security clearance prior to start. Candidates must meet DoDD 8140/8570 certification requirements (e.g., CompTIA Security+ CE) and will work within a secure government contracting environment. The position is full-time and located on-site at the RMS AP Building 805 facility.