Senior Mechanical Engineer - Test Equipment, Onsite (Tucson, AZ)

Date Posted: 2026-08-25 Country: United States of America Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ 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: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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 Missile Defense 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 has job opportunities across all phases of the engineering lifecycle, including demonstrations, early engineering tests, design verification tests, production, and sustainment. TEE is seeking Senior Mechanical Engineers to design, develop, document, and sustain complex test environment systems supporting all Raytheon effector products. In this role, you will also support and mentor less experienced engineers while contributing across all phases of the test equipment engineering lifecycle—from initial design through long-term sustainment. This role is 100% onsite in Tucson, AZ. What You Will Do Create mechanical test systems used across advanced environments—vibration, thermal, hydraulic, RF, electro‑optical, etc. Build and validate test solutions that deliver high accuracy and reliability in demanding production settings Diagnose production issues and recommend design improvements that elevate system performance Support and coach less experienced engineers while contributing to all phases of the test equipment engineering lifecycle, from design to sustainment. Qualifications You Must Have Typically requires a Bachelor’s degree in a STEM field and five (5) years of relevant engineering experience, OR an advanced degree in related field and minimum three (3) years of related work experience Minimum five (5) years of experience in mechanical design and/or production support Minimum five (5) years of experience with 3D CAD modeling tools (CREO / ProE preferred) Working knowledge of geometric dimensioning and tolerancing (GD&T) Experience creating mechanical drawings or engineering documentation Ability to obtain and maintain a U.S. government security clearance (U.S. citizenship required) Qualifications We Prefer Experience with mechanical or electro‑mechanical packaging Experience creating complex drawing or design packages Familiarity with configuration management tools (e.g., Windchill, cPDM) Exposure to Model‑Based Engineering or Model‑Based Design Experience in areas such as materials, thermal/structural analysis, control systems, electrical integration, or large assembly design Experience with environmental or qualification testing (vibration, shock, thermal, etc.) Exposure to systems engineering What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. This position offers relocation Learn More & Apply Now This is an onsite role. Employees who are working in onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.ht Tucson has a friendly, caring and laid-back atmosphere, combined with the innovation and energy of a metropolitan region and recognized as one of America’s 10 Best Small Cities. Surrounded by beautiful mountains, colorful Sonoran Desert landscape and majestic saguaro cacti, Tucson is blessed with some of nature’s best work. Tucson is known for its bright blue skies, and with more than 310 sunny days per year, Tucson’s fantastic weather lets residents enjoy the outdoors year-round As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accou