← All roles

Sr. Mechanical Engineer

Fourier· Engineering
Apply on company site
HQ$150k - $210kFull-timePosted 4mo ago

About the role

SeniorMechanical Engineer to lead mechanical design, analysis, integration, and validation of Fourier’s commercial hydrogen production systems, coordinating across mechanical, electrical, and manufacturing disciplines and driving DFM/DFA initiatives.

Responsibilities

  • Lead concept development, design trades, and down-select decisions for all mechanical subsystems from water purification through post-production H₂ purification
  • Own 3D CAD design of complex parts and assemblies using SolidWorks or equivalent — including sheet metal, plastics, insulation systems, sealing methods, connectors, and fasteners
  • Review and develop process flow diagrams, P&IDs, and mechanical design documentation
  • Perform first-principles hand calculations for sizing and performance of fluid, thermal, and structural systems
  • Collaborate closely with the electrical and electronics engineering teams to integrate HV power electronics and LV control, sensing, and communications systems into mechanical enclosures
  • Design packaging solutions for HV electrical assemblies — including bus bars, power modules, and high-current connectors — ensuring proper insulation, creepage/clearance compliance, and thermal management
  • Design and validate cooling technologies (heat exchangers, forced-air systems) for thermal management of electrolyzer stacks, power electronics, and ancillary electrical components
  • Ensure enclosure designs meet relevant electrical safety standards (UL, IEC, NFPA) for HV systems handling DC bus voltages typical of PEM electrolysis applications
  • Define and manage interface control documents (ICDs) between mechanical and electrical subsystems
  • Partner actively with manufacturing engineering to embed DFM and DFA principles from concept phase through production release
  • Create and maintain full BoP documentation including BOMs, P&IDs, and fluid system specifications
  • Hands-on experience or strong familiarity with gas and water piping systems, including pressure ratings, material compatibility, and leak testing protocols
  • Develop test plans and lead laboratory test and validation activities to confirm product reliability, safety, and performance
  • Create and maintain PLM documentation including BOMs, engineering drawings, design calculations, and FMEAs

Qualifications

  • B.S. in Mechanical Engineering or equivalent; 6+ years of relevant experience in commercial product design and development
  • First-principles understanding of statics, mechanics, materials science, heat transfer, thermodynamics, and fluid dynamics
  • Extensive experience taking mechanical designs from concept through production, including prototype builds and manufacturing release
  • Proven experience in DFM/DFA operating with manufacturing partners to optimize designs for producibility, assembly, and reliability
  • Demonstrated experience packaging and integrating electromechanical systems involving both HV and LV electrical components
  • Proficiency in 3D CAD (SolidWorks strongly preferred) and Thermal & Structural FEA tools
  • Strong hands-on aptitude — comfortable in the lab, on the shop floor, and at the test rig
  • Experience creating GD&T-compliant 2D fabrication drawings (ASME Y14.5)

Skills

Required:Mechanical design and analysisDFM/DFA collaborationHV/LV electrical packaging integrationThermal management and cooling designSafety standards compliance3D CAD and FEADocumentation and PLM
Nice to have:Piping and fluids handling

Benefits

  • Fully paid Medical, Dental, and Vision coverage
  • Competitive salary and equity compensation commensurate with experience
  • 401k Retirement Plan
  • Diverse and inclusive work environment
  • Paid sick days and vacation
  • In-office lunches
  • The opportunity to make a material impact on the global clean energy transition
Last updated Aug 5, 2026. Interested? Apply on the company site.
Fourier logo

About Fourier

Making hydrogen universally accessible

Making hydrogen universally accessible

HydrogenEnergyStorageFuelsChemical industryManufacturingPower backupRenewable power
Company profileWebsite

More open roles at Fourier