Mechanical Design Engineer III

Mechanical Design Engineer III

Location: Portsmouth, NH
Employment Type: Salaried, Exempt

Build the Next Generation of Protective Technology

Galvion is seeking a Mechanical Design Engineer III to join our Engineering team in Portsmouth, NH. In this role, you’ll help design and build the next generation of advanced electro-mechanical systems engineered to seamlessly integrate with the human body and perform in some of the world’s most demanding environments.

You’ll work as part of a fast-paced, multidisciplinary team alongside
Program Managers, Industrial Designers, Systems Architects, and Electrical Engineers to turn innovative concepts into high-quality products.

What You’ll Do

• Design mechanical components, assemblies, mechanisms, and electro-mechanical systems using 3D CAD/SolidWorks.


• Create and review engineering drawings, including GD&T, BOMs, and supporting documentation.


• Design packaging for rigid and flexible electronic circuits and interconnections.


• Perform structural, thermal, heat-transfer, and tolerance-stack analyses.


• Develop prototypes, assemble and test systems, and use 3D printers and shop tools to evaluate designs.


• Apply Design for Manufacturing (DFM) principles to support both low- and high-volume production.


• Work with molded and machined components across a variety of materials.


• Collaborate with suppliers to ensure quality, repeatable assembly, delivery, and manufacturing capacity.


• Participate in design reviews, troubleshooting, fault finding, and sustaining engineering activities.


• Work closely with cross-functional engineering and product development teams to rapidly iterate designs.


• Support continuous improvement and engineering excellence initiatives.

What We’re Looking For

• Bachelor’s degree in Mechanical Engineering.


• 4–7 years of mechanical engineering experience in a product development environment.


• Strong experience with SolidWorks or an equivalent 3D CAD platform, including drawings and PDM.


• Experience designing molded and machined parts.


• Working knowledge of Geometric Dimensioning and Tolerancing (GD&T).


• Experience performing engineering calculations and analyzing test data using Excel, MATLAB, or similar tools.


• Strong problem-solving skills and the ability to develop creative solutions to challenging mechanical problems.


• Excellent attention to detail and a strong commitment to quality.


• Clear written and verbal communication skills.


• Ability to work effectively in a collaborative, multidisciplinary environment.


• A proactive, customer-focused, and “can-do” mindset.

The Work Environment

This is a hands-on engineering position that combines office-based design work with time spent in a manufacturing environment. Some travel between Galvion facilities may be required, with occasional international travel to Canada.

Why Join Galvion?

At Galvion, you’ll have the opportunity to work on challenging, meaningful products where mechanical engineering, electronics, human-centered design, and ruggedized technology come together. You’ll be part of a collaborative team developing innovative equipment designed to perform when it matters most.

Galvion is an equal opportunity employer and is committed to providing a workplace free from discrimination in accordance with applicable federal, state, local, and provincial laws.