Design Engineer - Mechanical

Ohmium; Bengaluru; On-site; INR 800,000 - 1,200,000; Full time

Job summary

Ohmium in Bengaluru, India, seeks a mechanical design engineer to design and develop PEM electrolyzer stack components. You will create detailed drawings, perform tolerance studies, and support DFMEA-driven design changes across the product lifecycle.

The role requires 2–5 years of hands-on experience, strong SolidWorks skills, Sheet metal and machined part design, and collaboration with R&D, manufacturing, and supply chain to scale from concept to production.

Qualifications

• Bachelor's in mechanical engineering (masters a plus).
• 2–5 years of hands-on mechanical design experience across the product lifecycle.
• Proficient in 3D CAD (SolidWorks) with GD&T and tolerancing.
• Experience with DFMEA and root-cause analysis (8D).
• Sheet metal, plastic part, and machined component design and manufacturing.
• Ability to create technical drawings and engineering documentation.

Responsibilities

• Design and develop mechanical components for PEM electrolyzer stacks.
• Create and maintain detailed drawings with GD&T per ASME/ISO standards.
• Perform tolerance stack‑up and stiffness calculations.
• Lead or contribute to DFMEA studies and design improvements.
• Develop stack assembly processes and torque strategies.
• Produce component specifications and collaborate with suppliers.
• Define assembly work instructions, inspection criteria, and fixtures.
• Support root-cause investigations and translate findings into design changes.
• Prepare engineering reports, BOMs, ECNs, and DFMEA records.
• Collaborate with R&D, test, and supply chain to scale from concept to production.

Skills

3D CAD

GD&T

DFMEA

Sheet metal design

Engineering calculations

Technical documentation

Education

Bachelors in Mechanical Engineering

Tools

SolidWorks

Job description

Role & responsibilities

• 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 Y14.5 or ISO 2768/1101 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.

Preferred candidate profile

• Bachelors degree in mechanical engineering or a related discipline (masters degree a plus).
• 2-5 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