At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of tomorrow's threat. Our team solves tough, meaningful problems that create a safer, more secure world. The Test Equipment Engineering (TEE) Directorate is a multi-discipline organization responsible for developing test solutions for all Raytheon products. We are hands-on, designing with the latest technology and tools, and integrate state of the art test solutions with the most advanced engineering systems in the world. TEE products are located in engineering labs, in the field, and in production environments utilized for weapon system product verification, qualification, test data analysis, and production test solution development. TEE offers job opportunities across all phases of the engineering lifecycle, including demonstrations, early engineering tests, design verification tests, production, and sustainment. TEE is looking for an onsite Principal Test Equipment Mechanical Engineer in Tewksbury/Andover, MA to be responsible for designing, developing, documenting, and maintaining complex test environment systems for all Raytheon products.