Senior Powertrain Engineer

Job description

About Humble Robotics Working at Humble Robotics means taking on the biggest change in ground transportation in decades. We’re 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. We don’t believe culture can be engineered – but when it falls into place, it’s a once-in-a-lifetime adventure. Progress has never felt so present. ### Position Overview 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. ### Key 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 ### Minimum 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 - Strong cross-functional collaboration and communication skills - Eligible to work in the United States ### Preferred Qualifications - 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