
The Sr. Principal High Temperature Materials Engineer role is an onsite position within the Advanced Materials Section of Raytheon's Hardware Engineering department in Tucson, Arizona. The position requires an active U.S. government security clearance and focuses on leading technical decisions for high-temperature applications in defense systems. Key responsibilities include defining design verification test requirements, developing high-fidelity simulations for missile systems, and providing mentorship to engineering teams while resolving complex material challenges. The role appeals to experts seeking to apply their knowledge of ceramics, composites, and refractory metals to meaningful national security missions. Candidates will join a collaborative, multi-disciplined team that values innovation and technical integrity, offering the opportunity to drive strategy across diverse programs while working directly on-site.









