Senior Motor Systems Mechanical Engineer

Role Overview
As a Senior Motor Systems Mechanical Engineer, youll take ownership of themechanical design, integration, and validation of electric motorcycle propulsioncomponentsincluding the motor, inverter, gearbox, and cooling systems. Youll leadconcept-to-production development, ensuring structural integrity, thermal efficiency, andmanufacturability of motor assemblies that balance high performance with durability andcost.This role requires strong mechanical engineering fundamentals, practical experiencewith high-voltage rotating machinery, and the ability to collaborate closely with electrical,firmware, and systems engineers to deliver best-in-class powertrain performance.What Youll Do Lead the mechanical design and integration of electric drive systemcomponents (motor, inverter, gearbox, and related mounts). Own the 3D CAD modeling, tolerance analysis, and drawing release forpropulsion components and assemblies. Develop cooling, structural, and vibration mitigation solutions for high-power-density motor systems. Collaborate with electrical and thermal engineers to optimize electromagnetic,thermal, and mechanical interactions. Perform structural, fatigue, and thermal FEA to validate componentperformance under real-world loading conditions. Define material selection and surface treatments for durability, corrosionresistance, and thermal performance. Partner with manufacturing to ensure designs are optimized for DFM/DFA andsupport the transition from prototype to production. Support root-cause analysis for field issues, warranty returns, and test failures;implement corrective design actions. Participate in dyno, vibration, and thermal testing, interpreting data to validateand refine designs. Generate and maintain technical documentation, test reports, and engineeringchange records. Provide mentorship to junior engineers and collaborate cross-functionally toachieve aggressive performance and reliability goals.

What Youll Bring

Bachelors or Masters degree in Mechanical Engineering or a related field. 710 years of experience in mechanical design and integration of motors,gearboxes, or powertrain systemspreferably in EV, automotive, oraerospace applications.

Proficiency in 3D CAD (Creo, SolidWorks, or Siemens NX) and FEA tools
(Ansys, Abaqus, or similar). Strong understanding of mechanical dynamics, thermal management, andmaterials science for rotating machinery. Experience designing sealed housings, bearing systems, cooling jackets,and torque-transmission components. Familiarity with electromagnetic machine packaging, insulation systems, andEMI/thermal trade-offs. Demonstrated success with prototype development, validation testing, androot-cause failure analysis. Knowledge of manufacturing processes (casting, machining, injection molding,additive manufacturing, etc.) and GD&&T standards. Excellent cross-functional communication and documentation skills. Passion for innovation, electrification, and building world-class motorcycles.

Physical Requirements Regular use of CAD workstations, lab instruments, and test fixtures. Occasional lifting of prototype assemblies up to 25 lbs. Comfortable working in lab and dyno environments, including participation inphysical test setup and data collection.