Senior Mechanical Engineer

Position Role Type

Onsite

Active and transferable U.S. government issued security clearance is required prior to start date.

U.S. citizenship is required; only U.S. citizens are eligible for a security clearance.

DoD Clearance:
Secret

Active and existing security clearance required on day 1.

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 Advanced Airframes Department within Raytheon Hardware Engineering provides Mechanical Engineering support to develop solutions for products across the Raytheon portfolio. Our core mechanical engineering responsibilities include requirements/conceptual development, design, integration, and test support. We partner with several Mechanical Product Team departments to provide full system solutions.

The Advanced Airframes Department is seeking a Senior Mechanical Engineer to join our team at our Tucson, Arizona location. In this on‑site role, you will play a pivotal part as a member of a mechanical or cross‑functional engineering team to design, analyze, and optimize next‑generation aerospace mechanisms and structures. Your responsibilities will include leading design efforts, optimizing designs to meet demanding performance requirements, developing prototypes, and supporting testing to ensure compliance with rigorous aerospace standards.

The ideal candidate will be driven by challenges, passionate about aerospace and defense, and ready to make an impact. This position may require occasional travel to collaborate with vendors, support hardware procurement, oversee testing processes, and engage in related activities as needed.

Conceptualize and implement innovative technical solutions to address a wide range of complex challenges throughout the product lifecycle, including proposal development, advanced design, manufacturing, integration, testing, and support of missiles, launchers, support equipment, and electronics for military programs.

Operate with limited oversight to serve in a Responsible Engineering Authority (REA) role, often performing in a project management capacity for entire subsystems or systems.

Conduct comprehensive mechanical design analyses using engineering principles to ensure design intent aligns with form, fit, and function for specific use applications.

Provide leadership to small teams by leveraging extensive mechanical hardware design expertise in a dynamic, collaborative environment, working across disciplines such as structures, thermal, systems, harness and interconnects, electronics packaging, tooling, and system integration.

Lead mechanical engineering efforts, and collaborating with teams—including engineering disciplines, operations, supply chain, quality, and external suppliers—to resolve technical challenges and deliver effective design solutions.

Work independently under limited oversight to manage assignments, ensuring timely delivery within scope, budget, and technical requirements.

Participate in design reviews and facilitate trade studies to support data-driven and strategic engineering decisions.

Mentor and provide guidance to less experienced engineers, fostering skill development and contributing to team technical excellence.

• 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 mechanical design, and/or advanced design development, and/or manufacturing processes, and/or tooling processes, or related disciplines.
• Experience in developing, creating, releasing, and updating engineering drawings using a 3D CAD design tool.
• Experience with Geometric Dimensioning and Tolerancing…