The Role We're looking for a Staff Mechanical Engineer who can lead the development of complex GSE systems end-to-end and raise the technical bar across the team. You'll work across power delivery, fluid handling, thermal management, and structural packaging — and you'll be the primary mechanical engineering interface for our electrical, controls, and systems teams, external vendors, and field operations. This is not a position for someone who hands off to others at the hard parts.
Responsibilities
- Own the mechanical architecture of charging and thermal conditioning systems — from requirements definition and system sizing through detailed design, build, and validation
- Design fluid handling systems including coolant loops, pressurized reservoirs, and dispenser assemblies; specify components, author P&IDs, and manage thermal and hydraulic performance
- Package high-power electronics and control circuitry into field-deployable enclosures in tight collaboration with electrical, firmware, and compliance engineers and contract manufacturers
- Produce complete engineering documentation: manufacturing drawings, BOMs, assembly instructions, P&IDs — in CATIA (3DEXPERIENCE)
- Own prototype procurement — source hardware, select vendors, and coordinate fabrication with machine shops and contract manufacturers through the prototype phase; partner with Supply Chain for production-scale builds
- Lead design validation and testing programs; support the compliance team in providing mechanically sound, well-documented hardware for NRTL certification
- Support GSE deployments in the field, globally — including installation, commissioning, and issue resolution at operating sites
- Mentor senior engineers, provide architectural guidance, and help establish design standards and validation frameworks for the team
Required
- B.S. or higher in Mechanical Engineering or closely related discipline
- 8+ years of relevant engineering experience, with clear evidence of owning complex hardware programs
- Demonstrated experience designing and building fluid handling systems — coolant loops, pneumatic circuits, pressurized assemblies, or similar
- Experience designing power electronics enclosures and electromechanical assemblies for low-to-medium volume production
- Proficiency in a professional CAD package; CATIA (3DEXPERIENCE) strongly preferred
- Able to produce complete, manufacturing-ready documentation: drawings, BOMs, P&IDs, assembly instructions
- Hands-on — comfortable in a shop, able to debug hardware in person, and willing to do it
- Strong cross-functional communication skills; able to drive alignment across mechanical, electrical, controls, compliance, supply chain, and operations teams
- Willingness to travel internationally up to 15–20% of the time for deployments and site support
Desired
- Experience with DC fast charging infrastructure or high-power electrical systems (100+ kW)
- Familiarity with requirements and design constraints imposed by NRTL certification processes (TUV Rheinland, UL) — you don't need to own the certification path, but you should know how to design for it
- Background in refrigeration or active thermal management systems (chillers, heat exchangers, fluid loops with refrigerants such as R32)
- Experience working with and technically managing external contract manufacturers and machine shops through prototype builds
- Aerospace, defense, or other highly regulated hardware background
- Comfort operating in environments where the standards are being written alongside the hardware
Additional Information
Compensation at Joby is a combination of base pay and Restricted Stock Units (RSUs). The target base pay for this position is $161,200 - $221,700/yr. The compensation package will be determined by job-related knowledge, skills, and experience.
Joby also offers a comprehensive benefits package, including paid time off, healthcare benefits, a 401(k) plan with a company match, an employee stock purchase plan (ESPP), short-term and long-term disability coverage, life insurance, and more.
