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Humble Robotics

Posted 2 months ago

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Senior Powertrain Engineer

San FranciscoOn-siteFull-time

AI Summary

Senior Powertrain Engineer leads the architecture, design, and delivery of the full electric powertrain system for an autonomous heavy-duty vehicle platform, from battery pack to drivetrain, including testing and cross-functional integration.

About this role

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

    • Skills

    Battery SystemsBattery Thermal ManagementBMSControls CollaborationDrivetrainDurability TestingElectrical IntegrationElectric PowertrainElectromechanical PrototypingEnergy ModelingHigh-voltage DesignHV DistributionHV SafetyInverter/motor IntegrationInvertersLithium-ion BatteryMotorsPrototype DebuggingSafety Standards ISO 26262 SAe FMVSSSystem ModelingThermal AnalysisThermal Management SystemsValidation StrategyVehicle Testing

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