Embedded Motor Controls Engineer, Robotics

About Dexmate

Dexmate is building the foundation for physical AI by combining a new generation of robots with a universal Physical AI OS, making robots as easy to build and deploy as software. The company is focused on lowering the barrier to entry in robotics through a plug-and-play platform for developers, researchers, and enterprises.

The Role

Dexmate is looking for an Embedded Motor Controls Engineer to develop the real-time firmware that makes robot actuators precise, responsive, and reliable. This is a hands-on firmware and controls role with substantial time spent on the bench and working directly with real actuators.

Responsibilities

- Implement and validate field-oriented control for PMSM or BLDC motors, including current-loop timing, sensing, PWM, and parameter calibration.
- Develop torque, speed, and position control.
- Tune servo response and diagnose instability, friction, saturation, and sensing issues on physical hardware.
- Integrate encoders and other feedback sensors, including alignment, calibration, timing, and fault detection.
- Build deterministic command and telemetry interfaces using actuator buses such as CAN, CAN FD, or EtherCAT.
- Implement current, voltage, and thermal limits, derating, and fault recovery in coordination with the drive engineer and actuator lead.
- Develop automated bench and HIL tests with validation engineers.
- Maintain reproducible firmware releases, diagnostics, and production calibration procedures.

Job Requirements: Must-haves: - Strong embedded C or C++ skills - Experience developing real-time firmware on MCUs or DSPs - Hands-on experience implementing field-oriented control on physical hardware - Experience tuning motor or servo control loops with measurable performance results - Experience with encoder feedback, ADC and PWM timing, interrupts, and bare-metal or RTOS execution - Ability to read schematics and debug hardware using oscilloscopes, logic analyzers, and hardware debuggers Required Skills: - Embedded C/C++ - Real-time firmware development - MCU or DSP development - Field-oriented control (FOC) - PMSM and/or BLDC motor control - Torque, speed, and position control - Servo tuning and control-loop debugging - Encoder integration and calibration - ADC and PWM timing - Interrupt-driven and bare-metal or RTOS execution - CAN, CAN FD, and/or EtherCAT communications - Fault detection, derating, and recovery - Hardware debugging and bench testing - Cross-functional collaboration across firmware, power electronics, and mechanical engineering Desired Skills: - Experience with TI C2000, STM32, ARM Cortex-M, or similar motor-control platforms - Experience with EtherCAT or CAN-based servo networks - Torque control experience - System identification experience - Friction compensation experience - HIL testing and fault injection - Production calibration experience - Python-based test automation