Humble Robotics
Powertrain Engineer
San Francisco · On-site · Full-time · Posted Apr 10, 2026
- Experience
- 5+ years in electric powertrain, battery systems, or vehicle propulsion.
- Education
- Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or related field.
- Visa sponsorship
- Eligible to work in the United States.
About the job
Owns the architecture, development, integration, and validation of the electric powertrain for an autonomous heavy-duty vehicle.
What you'll do
- Develop the powertrain system, including battery, high-voltage architecture, motors, inverters, and drivetrain; manage system tradeoffs and modeling.
- Lead integration, validation, testing, vehicle bring-up, and debugging of powertrain and high-voltage systems.
- Manage supplier relationships and collaborate across teams to address safety, thermal, performance, and reliability risks.
What they ask for
- Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or related field.
- 5+ years of experience in electric powertrain, battery systems, or vehicle propulsion.
- Strong fundamentals in electric machines, power electronics, and lithium-ion battery systems; experience with high-voltage system design and safety.
- Experience delivering hardware from concept through validation, using system modeling tools, and hands-on prototyping, testing, and debugging electromechanical systems.
Nice to have
- Experience with heavy-duty trucks or commercial EV platforms; battery pack design, integration, or validation.
- Experience with BMS, HV distribution, thermal management, inverter/motor integration and controls; familiarity with automotive standards or prototype-to-production scaling.
Tools
BMS, ISO 26262, SAE, FMVSS
AI focus
The role involves developing a vision-based AI autonomous hauler. AI tools may also be used during interviews to compare applicants’ qualifications with the job description; a human reviews the output and makes the final hiring decision.
Model-written summary · the original posting is authoritative