Electrical Engineer - Motor Controller (PCB)

Team: Hardware

Location: Shanghai, China

Commitment: Full time

Workplace Type: onsite

Who you are:

• A power-electronics and mixed-signal designer who loves compact, high-density boards.
• Rigorous on the bench: you validate your design with current probes and thermal cameras, not assumptions.
• A close collaborator - your daily partners are firmware and control engineers.

What will your job look like:

• Design the joint motor controller PCB: inverter stage (MOSFET selection, gate drivers), phase current sensing, bus voltage sensing, and protections.
• Design encoder, temperature, and auxiliary sensor interfaces on the board.
• Integrate the communication physical layer (EtherCAT/CAN) and MCU subsystem in partnership with the embedded team.
• Own layout for high-current, high-density, thermally constrained boards that package inside actuator modules.
• Run board bring-up: power-on, signal integrity, current loop sanity, thermal validation under load.
• Iterate fast across board revisions with local PCB/PCBA suppliers together with sourcing.
• Support EMI/EMC robustness and harness/connector definition with the power systems engineer.

All you need is:

• B.Sc. or M.Sc. in Electrical Engineering or related fields.
• 8+ years designing motor drive or power electronics boards (BLDC inverters, servo drives, ESCs, or similar).
• Strong schematic and layout skills (Altium or equivalent) for mixed-signal, high-current designs.
• Hands-on bring-up and debug experience: oscilloscopes, current probes, thermal measurement.
• Solid understanding of FOC drive requirements: current sensing accuracy, PWM dead-time, gate drive design.
• Experience working closely with firmware teams on board bring-up.

Nice to have:

• Experience with integrated actuator drives ('smart joints') in robotics or drones.
• EtherCAT or CAN-FD hardware integration experience.
• Experience with GaN or high-frequency switching designs.
• Familiarity with functional safety concepts (STO, protections).
• Comfortable communicating technical topics in English with international teams.