Lead Electric Powertrain Architect

Humble Robotics; San Francisco (CA); On-site; USD 150,000 - 240,000; Full time

Job summary

Humble Robotics in San Francisco is seeking a Senior Powertrain Engineer to own the architecture, design, and delivery of the full electric powertrain for our autonomous heavy-duty hauler. You will drive system-level architecture, battery integration, and overall propulsion performance in demanding field conditions.

In this role you will lead cross-functional teams across battery, motors, HV distribution, and drivetrain, oversee validation and prototype bring-up, and manage supplier

Qualifications

• 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.
• Strong cross-functional collaboration and communication skills.
• Eligible to work in the United States.

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

5+ years powertrain experience

Electric machines fundamentals

Power electronics basics

Lithium-ion battery systems

High voltage system design

Hardware development lifecycle

System modeling tools

Prototyping, testing, debugging

Independent decision making

Cross-functional collaboration

Education

Bachelor's degree in Mechanical or Electrical Engineering

Job description

Humble Robotics in San Francisco is seeking a Senior Powertrain Engineer to own the architecture, design, and delivery of the full electric powertrain for our autonomous heavy-duty hauler. You will drive system-level architecture, battery integration, and overall propulsion performance in demanding field conditions.

In this role you will lead cross-functional teams across battery, motors, HV distribution, and drivetrain, oversee validation and prototype bring-up, and manage supplier