2026 ADGE Principal Mechanical Engineer – On-Site

Location: US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. The Air Defense Ground Equipment Mechanical Design Department is responsible for the mechanical design, development, and integration of critical defense platform systems. This includes radar and communications shelters, electronic subsystems, launchers, hardware integration, and system interconnects. Role is an On-Site role in Tewksbury, MA/Andover, MA What You Will Do Perform ME design, development, and documentation of components, subassemblies, and major end items Oversee small to mid-sized cross-functional engineering teams as the technical execution lead across all phases—from proposal generation and program initiation Serve as the technical focal point for mechanical or cross-functional teams Provide support for product integration with domestic and international factories and suppliers. Collaborate with engineering and non-engineering disciplines, and suppliers, to resolve technical challenges Work independently with minimal supervision while ensuring schedule, cost, and technical commitments are met. Support and participate in design peer reviews, and conduct trade studies Apply ME knowledge to solve problems in a fast-paced, team-oriented environment. Mentor and guide junior engineers, fostering growth and knowledge sharing within the team.

You Must Have Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or an Advanced Degree in a related field and minimum 5 years’ experience. Experience spanning concept development, detailed design, transition to production, and sustainment. Experience in mechanical design, material selection, and mfg processes. Experience in CAD design tools, ProE and CREO, including Large Assembly Management. Experience with Product Data Management (PDM) systems Qualifications We Prefer Advanced degree in Mechanical Engineering or related hardware systems field Design and integration of electronic/shelter assemblies and power distribution equipment Troubleshooting electromechanical systems Experience