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Senior Mechanical Design Engineer

Job in Tewksbury, Middlesex County, Massachusetts, 01876, USA
Listing for: Raytheon
Full Time position
Listed on 2026-06-27
Job specializations:
  • Engineering
    Mechanical Engineer, Engineering Design & Technologists, Manufacturing Engineer, Systems Engineer
Job Description & How to Apply Below

Senior Mechanical Engineer

Raytheon's Hardware Mechanical Engineering 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.

This is an onsite position and can be located at one of the following Massachusetts locations - Tewksbury, Andover, or Marlborough.

What You Will Do
  • Developing innovative technical solutions to a wide range of complex challenges spanning 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 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 ruggedized structures, interconnects, cooling, electronics packaging, tooling and/or array integration.
  • Provide support for product integration and efforts in both domestic and international factories and supplier locations to assess requirements compliancy.
  • 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
  • Proven mechanical design ability in a production or advanced development environment.
  • Experience in design, fabrication, or integration of Electronics Packaging, design and development of Electronic Systems, including interconnects, power distribution, cooling, RF or tooling products.
  • Technical Data Package creation, 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.
  • Experience in Geometric Dimensioning and Tolerancing.
  • Experience with cost and/or schedule reporting or proposal development.
  • Highly detail-oriented with a demonstrated ability to work effectively within cross-functional teams.
  • Familiarity with Military and/or Commercial Specifications and requirements
  • Willingness to travel (domestic and international)
  • Advanced degree in mechanical engineering, aerospace hardware systems design

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.

Work Schedule:

9/80 schedule (every other Friday off)

Relocation Eligible - relocation assistance is available for this position

Position Requirements
10+ Years work experience
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