Senior Mechanical Design Engineer Hydrogen Systems

Nel Hydrogen; Wallingford (CT); On-site; USD 120,000 - 140,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

Retirement savings plan

Paid vacation and holidays

Job summary

Nel Hydrogen, a global leader in on-site hydrogen generation, seeks a Senior Mechanical Design Engineer to drive component and assembly design from concept to production. You will perform loads, stress, flow analyses and develop manufacturable concepts with hands-on testing.

You will prepare detailed documentation and participate in technical reviews to ensure robust, scalable designs for electrochemical stacks, collaborating with manufacturing and suppliers across functions.

Qualifications

• Bachelor’s or Master’s in Mechanical Engineering, 8+ years experience
• Proficient in parametric 3D CAD for complex assemblies
• Demonstrated GD&T and tolerance stack‑up analysis
• Knowledge of metals, polymers, coatings, and materials compatibility
• Experience with manufacturing processes: molding, machining, forming, joining, coating
• Experience with supplier collaboration on technical requirements and manufacturability
• Experience planning and executing engineering development activities
• Ability to work in a collaborative, multidisciplinary team

Responsibilities

• Design components and complex assemblies for electrochemical cell stacks
• Perform mechanical calculations: loads, stress, deformation, CFD, and pressure drop
• Create CAD models, drawings, and BOMs with GD&T and FEA
• Assemble and test cell stacks and related systems with proper instrumentation
• Prepare test plans, reports, and assembly procedures
• Identify cost-reduction and reliability opportunities
• Collaborate with manufacturing and suppliers on feasibility and quality
• Support non-conforming product disposition and root-cause analysis

Skills

3D CAD proficiency

GD&T

FEA

CFD/Fluid flow

Engineering analysis

Materials knowledge

Manufacturing processes

Collaboration

Education

Bachelor’s or Master’s in Mechanical Engineering

Tools

PTC Creo

ANSYS/Sim

Job description

Nel Hydrogen, a global leader in on-site hydrogen generation, seeks a Senior Mechanical Design Engineer to drive component and assembly design from concept to production. You will perform loads, stress, flow analyses and develop manufacturable concepts with hands-on testing.

You will prepare detailed documentation and participate in technical reviews to ensure robust, scalable designs for electrochemical stacks, collaborating with manufacturing and suppliers across functions.