Mechanical Design Engineer

Nel Hydrogen • Wallingford, CT

3d

About The Position

Join Nel and help advance one of the world’s most critical energy technologies. At Nel, you’ll work at the forefront of hydrogen innovation - contributing to the design and development of electrochemical systems that power the green energy transition. In this role, you will apply your mechanical engineering expertise to complex component and system design, helping improve performance, reliability, and manufacturability. You will work across engineering and manufacturing, combining analytical depth with hands-on problem solving. This is an opportunity to make a tangible impact while working in a collaborative, multidisciplinary environment.

Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering, or equivalent
• 3-8 years of industry-related experience (e.g., fuel cells, fluidics, gas separation, flow batteries, piping systems, pressure vessels), or PhD in a related field
• 3+ years of experience designing and analyzing precision components for complex assemblies
• Ability to work effectively in a highly collaborative, multidisciplinary team environment
• Experience with design of pressure containment devices or sealing systems
• Familiarity with manufacturing processes, including molding, machining, forming, and joining methods
• Experience supporting manufacturing operations
• Experience with supplier interaction and evaluation
• Working familiarity with safe work practices and hazard analysis

Nice To Haves

• Experience with 3D CAD (PTC Creo strongly preferred)
• Experience with FEA (PTC Simulate or ANSYS preferred) or CFD (ANSYS CFX)
• Experience with project planning

Responsibilities

• Develop and design components and assemblies for electrochemical cell stacks to meet functional requirements while minimizing cost; order and inspect components for compliance with specifications
• Perform engineering calculations to support design concepts, including: Stress analysis / FEA for mechanical robustness, CFD for fluid flow distribution, Tolerance modeling
• Use PTC Creo to create detailed drawings, assemblies, and bills of materials
• Assemble and test cell stacks and associated systems using equipment and hand tools
• Prepare test plans, technical reports, drawings, and assembly processes
• Conduct research and testing to extend electrochemical cell stack functionality, including: Identifying cost reduction opportunities, Improving system reliability, Exploring new applications for existing technology
• Collaborate with the manufacturing team to: Design for manufacturability and volume production, Develop inspection criteria, Evaluate component suppliers
• Support manufacturing in the disposition of non-conforming products and assist technical service teams with troubleshooting field returns

Benefits

• Comprehensive health and insurance benefits
• Short-term incentive program
• Competitive paid vacation time
• Sick leave
• Holidays

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level