Senior Mechanical Engineer - DoD-Cleared, Onsite Tucson

RTX is seeking a Principal Mechanical Engineer for our Mechanical Design organization in Tucson, AZ. The role spans the full hardware lifecycle from design through production and fielding, supporting multiple product lines for U.S. Government and international customers. This onsite position requires a DoD Secret clearance or the ability to obtain one, with travel as needed. You will lead mechanical design efforts, mentor teams, and collaborate with cross-functional groups to deliver robust,