
This onsite Senior Principal Mechanical Engineer role within Raytheon's Mechanical Analysis and Test Department focuses on structural integrity and high-temperature materials for hypersonic aerospace systems. The position involves performing complex structural analyses using finite element methods, designing and executing material testing protocols for ceramics and composites, and leading technical peer reviews to ensure design robustness. Candidates will act as a technical subject matter expert to define department processes and present findings to government stakeholders. The role appeals to engineers seeking to solve meaningful national security challenges within a collaborative culture that values innovation and safety. Success requires an active Secret security clearance and U.S. citizenship, with occasional travel to test sites in Tucson, Arizona.













