
This onsite Senior Mechanical Engineer role within the Mechanical Analysis and Test Department at Raytheon's Tucson facility focuses on thermal engineering for defense systems. The position involves performing detailed thermal analyses using finite element software and hand calculations, generating test plans to validate hardware, and correlating models with experimental data. Key responsibilities include presenting technical results to government customers, leading analysis teams, and defining departmental processes. The role appeals to engineers seeking to solve meaningful, high-stakes problems that contribute to national security while working with state-of-the-art tools. Candidates benefit from a robust total rewards package featuring career development programs, flexible work schedules, and comprehensive wellness and retirement benefits.










