Sr Mechanical Design Engineer

Date Posted: 2026-06-09 | Location: Portsmouth, RI (Onsite) | U.S. citizenship required for security clearance eligibility.

About the Role

Raytheon is expanding its engineering organization to meet customer demand and is seeking a Senior Mechanical Engineer to join our Hardware Mechanical Engineering team. This role involves designing, developing, and producing critical defense systems for land, sea, and air applications. We value foundational skills and a passion for solving complex problems, and we invest in engineers regardless of prior defense industry experience.

Responsibilities

• Develop innovative technical solutions across the entire product lifecycle, including proposal, advanced development, design, cooling, manufacturing, integration, and testing of radars, support equipment, and electronics for military programs.
• Perform tolerance analyses to ensure form, fit, and function meet design intent for ruggedized structures, interconnects, cooling, electronics packaging, tooling, and array integration.
• Lead small teams in a fast-paced collaborative environment, providing mechanical hardware design expertise.
• Support product integration and compliance assessments in domestic and international factories and supplier locations.
• Collaborate with cross-functional teams (engineering, operations, supply chain, quality, and external suppliers) to resolve technical challenges and develop effective design solutions.
• Independently manage tasks to meet schedule, budget, and technical goals.
• Participate in design reviews and conduct trade studies to support engineering decisions.
• Mentor and guide less experienced engineers to foster team development and technical growth.
• Create, review, and interpret technical documentation for hardware or tooling products.
• Develop, create, release, or update engineering drawings using 3D CAD design tools.

Requirements

• Degree in Science, Technology, Engineering, or Mathematics (STEM) with a minimum of 5 years of relevant experience, or an Advanced Degree with 3 years of experience.
• Experience in mechanical design, advanced design development, manufacturing, or tooling processes.
• Experience with the development, creation, release, or updates of engineering drawings using 3D CAD tools.

Preferred Qualifications

• Proven mechanical design ability in production or advanced development environments.
• Experience in electronics packaging, electronic systems design (interconnects, power distribution, cooling, RF, or tooling products).
• Technical Data Package creation and change notice processing, including communication of functional and performance requirements.
• Proficiency in CREO CAD or similar 3D solid modeling software with configuration and data management.
• Experience with Geometric Dimensioning and Tolerancing (GD&T).
• Familiarity with cost/schedule reporting or proposal development.
• Detail-oriented with strong cross-functional team collaboration skills.
• Knowledge of Military and/or Commercial Specifications and requirements.
• Willingness to travel domestically and internationally.
• Advanced degree in mechanical engineering or aerospace hardware systems design.

Benefits

• Medical, dental, and vision insurance.
• Life insurance, short-term and long-term disability coverage.
• 401(k) match.
• Flexible spending accounts.
• Flexible work schedules (9/80 schedule: every other Friday off).
• Employee assistance program.
• Employee Scholar Program (tuition assistance).
• Parental leave, paid time off, and holidays.
• Annual short-term and/or long-term incentive compensation programs (eligibility dependent on role and collective-bargaining agreements).
• Relocation assistance available.

Pay

The salary range for this role is $86,800 – $165,200 USD. The final offer considers factors such as role, function, responsibilities, work experience, location, education/training, and key skills.

Schedule

9/80 schedule (every other Friday off).