Senior Powertrain Engineer
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
Additional Information As part of the interview process, we may use Artificial Intelligence (AI) tools to compare your qualifications and experience to the job description. A human reviews all AI output and makes a final hiring decision. Humble Robotics does not rely on the output to make any employment decisions. Some applicants may have a legal right to opt-out of the use of AI as part of our interview process. Contact legal@humblerobotics.ai to exercise this right or if you have further questions on the use of AI tools in our hiring process. Humble Robotics is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, national origin, gender, age, religion, disability, sexual orientation, veteran status, marital status or any other characteristics protected by law. Humble Robotics will consider qualified applicants with arrest and conviction records in a manner consistent with local ordinances.