Senior Mechanical Engineer

Date Posted: 2026-07-21 Country: United States of America Location: US-AZ-TUCSON-807 ~ 1151 E Hermans Rd ~ BLDG 807 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 We're   growing fast and we want you to grow with us!   We're   expanding our engineering organization dramatically to meet exciting customer demand, and   we're   actively looking for engineers who bring strong foundational skills and a passion for solving hard problems. Industry experience in defense? Not required —   we'll   invest in you. If you meet the minimum qualifications, we want to talk. Apply today and take the next step in your engineering career.   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.    Raytheon’s Hardware Engineering (HWE) team leads the mechanical hardware design,   development   and production of critical defense systems. The HWE Team uses   state-of-the-art   tools, processes, technology, and Raytheon’s CORE principles. HWE’s capabilities encompass a broad range of technical disciplines which include engineering, manufacturing, technical services, materials, processes, analysis, test, and documentation.   The ideal candidate for   Senior Mechanical Engineer   will bring a blend of technical ability, experience in mechanical hardware design, system integration skills, and a strong background in program execution whether design and development or production support. As a key contributor on a mechanical or cross-functional engineering team, you will take responsibility for   component   and assembly modeling, documentation, design changes, and releases processes. This position is ideal for a mid-career mechanical engineer who is   looking to grow their skills in design, manufacturing, and technical problem-solving within a highly collaborative and mission-focused environment.   What You Will Do   Design:   Developing innovative technical solutions to a wide range of complex challenges spanning the entire product lifecycle, including proposal, advanced development, design, manufacturing, integration, and testing of missiles and launchers, support   equipment   and electronics for military programs.   Perform mechanical design analyses   utilizing   engineering fundamentals to ensure form, fit, and function are as intended by design for the use-application.   Lead small teams   utilizing   strong mechanical hardware design experience and knowledge in a fast-paced collaborative environment with structures, thermal, harness and interconnects, electronics packaging,   tooling   and/or integration.   Provide support for product assembly and integration in factories and suppliers at both domestic and international locations to assess requirements compliancy.   Teaming/Communication:   Lead a mechanical engineering team and collaborate with cross-functional teams including other engineering disciplines, operations, supply chain, quality, and external suppliers to resolve technical challenges and develop effective design solutions.   Independently manage tasks and deliver on schedule, budget, and technical goals.   Participate in design reviews and conduct trade studies to support informed, sound engineering decisions.   Mentor and guide less experienced engineers, contributing to team development and technical growth.   Qualifications You Must Have       Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3   years experience .   Experience in the creation, review and interpretation of technical documentation   utilized   in the development or production of hardware or tooling products.   Experience in mechanical design, advanced design development, manufacturing or tooling processes, or related areas.   Experience in the development, creation, release, or updates of engineering drawings   utilizing   a 3D CAD design tool.   Qualifications We Prefer     Highly detail-oriented with a demonstrated ability to work effectively within cross-functional teams.   Ability to work autonomously, lead engineering teams, with minimal supervision.   Technical Data Package creation using GD&T (Geometric Dimension and Tolerances), change notice processing including communication of   required   functional and performance requirements.   Experience using CREO CAD design and documentation tools or similar 3D solid modeling software with a configuration and data management environment.   Factory support experience and development of low-rate as well as full-rate production of hardware.   Experience in design, fabrication, or integration of effectors and launchers including harness and interconnects, energetics and propulsion, and electro