
This onsite Senior Principal Mechanical Engineer role within Raytheon's Mechanical Analysis and Test Department focuses on structural integrity and high-temperature material systems for aerospace defense programs. The position requires a U.S. citizen with an active security clearance to lead detailed structural analysis and testing using finite element methods and classical calculations. Key responsibilities include developing test plans for ceramic matrix composites and refractory metals, validating hardware against customer requirements, and serving as a technical subject matter expert to guide department processes. The role appeals to engineers seeking to solve complex, meaningful problems that enhance national security while working in a collaborative culture rooted in safety and innovation. Candidates will engage in peer reviews, present findings to government stakeholders, and occasionally travel to test sites to support program milestones.





