Principal Linux Administrator (Secret Clearance Required)

A Principal Linux Administrator at RTX will support a highly virtualized enterprise infrastructure with an emphasis on Linux-based systems, working under technical team leaders and collaborating across multiple sites. The role focuses on implementing automation, optimizing system performance, and maintaining reliability and security in mission-critical, high-security environments. This onsite position is located in Tucson, AZ; Dallas, TX; or El Segundo, CA and requires an active DoD Secret clearance and U.S. citizenship.