Senior EV Powertrain Engineer for Autonomous Haulers

Humble Robotics; San Francisco (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Humble Robotics is seeking a Senior Powertrain Engineer to own the architecture, design, and delivery of the full electric powertrain for our autonomous heavy‑duty vehicle platform in San Francisco. You will drive system‑level performance and reliability from concept to production, collaborating with controls, autonomy, electrical, and thermal teams.

This highly cross-disciplinary, safety‑critical role requires leading validation, prototype support, and supplier relations while ensuring hardware

Qualifications

• 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 considerations.
• Proven track record delivering hardware from concept through validation.
• Experience with system modeling tools.
• Hands-on experience with prototyping, testing, and debugging electromechanical systems.
• Ability to operate independently and make high quality engineering decisions under uncertainty.

Responsibilities

• Own end-to-end development of the electric powertrain system, including battery pack, HV architecture, motors, inverters, and drivetrain.
• Define system architecture and key tradeoffs across performance, range, efficiency, thermal management, and durability.
• Lead battery system integration, including pack design requirements, thermal strategy, HV safety, and interface with BMS.
• Drive system level modeling and analysis (energy consumption, thermal behavior, duty cycles, and degradation).
• Collaborate closely with controls, autonomy, electrical, and thermal teams to ensure seamless system integration.
• Lead validation strategy and execution, including component testing, battery validation, vehicle testing, and durability testing.
• Support prototype builds and vehicle bring-up, including hands on debugging of HV and powertrain systems.
• Own supplier technical relationships for battery systems, motors, inverters, and drivetrain components.
• Identify and mitigate key risks across HV safety, thermal limits, and system reliability.
• Set engineering standards, review designs, and raise the technical bar across the team.

Skills

Electric powertrain

Battery integration

System modeling

Prototyping & testing

Cross-functional collaboration

Education

Bachelor’s degree in Mechanical/Electrical Engineering

Tools

System modeling tools

Job description

Humble Robotics is seeking a Senior Powertrain Engineer to own the architecture, design, and delivery of the full electric powertrain for our autonomous heavy‑duty vehicle platform in San Francisco. You will drive system‑level performance and reliability from concept to production, collaborating with controls, autonomy, electrical, and thermal teams.

This highly cross-disciplinary, safety‑critical role requires leading validation, prototype support, and supplier relations while ensuring hardware