Senior Powertrain Engineer

Job Description About Humble RoboticsWorking 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 OverviewThe 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 ResponsibilitiesOwn end-to-end development of the electric powertrain system, including battery pack, HV architecture, motors, inverters, and drivetrainDefine system architecture and key tradeoffs across performance, range, efficiency, thermal management, and durabilityLead battery system integration, including pack design requirements, thermal strategy, HV safety, and interface with BMSDrive 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 integrationLead validation strategy and execution, including component testing, battery validation, vehicle testing, and durability testingSupport prototype builds and vehicle bring-up, including hands on debugging of HV and powertrain systemsOwn supplier technical relationships for battery systems, motors, inverters, and drivetrain componentsIdentify and mitigate key risks across HV safety, thermal limits, and system reliabilitySet engineering standards, review designs, and raise the technical bar across the teamMinimum QualificationsBachelor's degree in Mechanical Engineering, Electrical Engineering, or related field5+ years of experience in electric powertrain, battery systems, or vehicle propulsionStrong fundamentals in electric machines, power electronics, and lithium-ion battery systemsExperience with high voltage system design and safety considerationsProven track record delivering hardware from concept through validationExperience with system modeling toolsHands-on experience with prototyping, testing, and debugging electromechanical systemsAbility to operate independently and make high quality engineering decisions under uncertaintyStrong cross-functional collaboration and communication skillsEligible to work in the United StatesPreferred QualificationsExperience with heavy duty trucks or commercial EV platformsExperience with battery pack design, integration, or validationExperience with BMS, HV distribution, and thermal management systemsExperience with inverter/motor integration and controlsFamiliarity with automotive standards (e.g., ISO 26262, SAE, FMVSS)Experience scaling systems from prototype to productionExperience working in fast-paced startup or product development environmentsCompensationThis role is eligible for base salary + benefits + equity compensation. Salary ranges are determined by role, level, and location. Within the range, individual pay is determined by additional factors, including qualifications, skills, experience, and location.Additional InformationAs 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.We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.