Design Engineer Mechanical

Job Description:

• Design and develop mechanical components for PEM Electrolyzer stacks including bipolar/end plates gaskets and seals current collectors tie-rod/tension assemblies and manifolding using SolidWorks or equivalent CAD tools.
• Create and maintain detailed part and assembly drawings with GD&T tolerance dimensioning and third-angle projection per ASME standards.
• Perform engineering analysis such as tolerance stack-up structural/stiffness calculations for endplates sealing calculations for gaskets flow field analysis like pressure drop calculations for Bipolar Plates and material compatibility assessments
• Lead or contribute to DFMEA studies for design changes (e.g. materials coatings surface finishes) identifying failure modes causes and effects and defining mitigations.
• Develop and validate stack assembly processes including uniform torquing/compression strategies torque sequencing and pressure distribution verification
• Author and maintain detailed component specifications for stack mechanical components (bipolar/end plates gaskets/seals current collectors tie-rods) including dimensional material and performance requirements.
• Collaborate with supply chain and quality teams to validate that specifications are achievable at the intended production volume and refine specs based on DFM/DFA feedback.
• Collaborate with manufacturing and quality teams to define assembly work instructions inspection & acceptance criteria and fixture/tooling requirements.
• Support root-cause investigations for field & test failures and translate findings into design improvements.
• Prepare and maintain engineering documentation: design reports drawings BOMs ECNs and DFMEA records.
• Work closely with R&D test engineering and supply chain to bring new designs from concept through pilot to production scale.

• Bachelors degree in mechanical engineering or a related discipline (masters degree a plus).
• 3-5 years of hands-on experience mechanical design product development & engineering execution across product lifecycle ideally in Electrolyzers fuel cells batteries pressure vessels heat exchangers or other precision electromechanical assemblies.
• Strong proficiency in 3D CAD (SolidWorks preferred) and 2D drawing creation for Sheetmetals & Machined components with proper GD&T and tolerancing practices.
• Practical experience with DFMEA methodology and root-cause/failure analysis (e.g. 8D).
• Hands on experience with sheetmetal plastic part & machined component design and manufacturing processes such as Injection moulding casting machining and fabrication.
• Ability to develop mechanical designs perform engineering calculations create technical drawings and execute design verification activities.
• Strong communication & problem-solving skills with experience producing clear engineering documentation.

Ohmium is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.