Senior Powertrain Engineer

Humble RoboticsSan Francisco, CA

About The Position

Humble Robotics is building an autonomous, zero-emissions hauler that dramatically lowers the cost of freight with groundbreaking vision-based AI, designed for today’s global logistics network. We’re a fast-moving, close-knit team of AV industry veterans and innovative thinkers. The Senior Powertrain Engineer owns the architecture, design, and delivery of the full electric powertrain system - including battery, high voltage distribution, motors, inverters, and drivetrain for our autonomous heavy duty vehicle platform. This is a highly cross-disciplinary, safety critical role. You will define system level architecture, drive performance and efficiency from first principles, and deliver production ready hardware that operates reliably under demanding real world conditions.

Requirements

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

Nice To Haves

  • Experience with heavy duty trucks or commercial EV platforms
  • Experience with battery pack design, integration, or validation
  • Experience with BMS, HV distribution, and thermal management systems
  • Experience with inverter/motor integration and controls
  • Familiarity with automotive standards (e.g., ISO 26262, SAE, FMVSS)
  • Experience scaling systems from prototype to production
  • Experience working in fast-paced startup or product development environments

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

Benefits

  • Equal opportunity employer
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