Senior Motor Engineer

Key Responsibilities

• Lead the overall technical design and requirement decomposition offrameless torque motors, including electromagnetic topology, pole-slot combination, winding configuration, magnetic circuit, and material selection.
• Conduct electromagnetic simulation and multi-objective optimization, balancingpeak/continuous torque, efficiency, cogging torque, torque ripple, back EMF, field-weakening capability, cost, and manufacturability.
• Lead motor thermal design and continuous-output capability assessment. Developelectromagnetic-thermal-structural coupled models and drive optimization of heat dissipation paths within the joint module.
• Define technical requirements for thestator, rotor, permanent magnets, windings, insulation, potting, and assembly interfaces, supporting integrated design with the gearbox, encoder, brake, motor drive, and housing.
• DevelopDV/PV validation plans for prototypes and lead performance mapping, temperature-rise, NVH, overload, durability, environmental, and reliability testing. Drive root-cause analysis and issue closure.
• Drive motor platform development, product family development, and design standardization. Establishdesign guidelines, calculation templates, technical databases, DFMEA, and engineering knowledge repositories.
• Collaborate with suppliers, purchasing, manufacturing, and quality teams onprocess reviews, DFM optimization, cost analysis, critical-characteristic control, and mass production launch.
• Track technology trends in robotic joint motors and identify opportunities inhigh torque density, advanced winding technologies, magnetic circuit innovation, materials, and cooling technologies, supporting patent development and technology roadmap planning.

Qualifications

• Bachelor’s degree or above inElectrical Engineering, Motor Engineering, Mechatronics, Automation, or a related discipline. Master’s degree or above is preferred.
• 5+ years of experience in permanent magnet synchronous motor development. Experience with frameless torque motors, robotic joints, collaborative robots, servo actuators, or compact electric drive systems is preferred.
• Strong knowledge ofPMSM electromagnetic design principles, with the ability to independently perform parameter calculations, concept design, simulation and optimization, prototype commissioning, and test-result analysis.
• Proficiency in at least one mainstream electromagnetic or thermal simulation tool, such asAnsys Maxwell, Motor-CAD, JMAG, or Flux. Experience withMATLAB/Simulink is also required.
• Good understanding ofFOC, SVPWM, current/speed/position closed-loop control, and encoder fundamentals, with the ability to work with drive and control teams on electromechanical matching and system commissioning.
• Solid knowledge ofmotor materials, winding and insulation systems, permanent magnets, protection methods, potting, assembly, and manufacturing processes, with strong awareness of tolerance management, reliability, and failure analysis.
• Strongstructured problem-solving, cross-functional collaboration, and technical communication skills. Able to read technical documentation in English and handle routine written communication in English.

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