At Mentee Robotics, we are redefining humanoid automation with an AI-first approach - combining perception, reasoning, and dexterous manipulation into fully autonomous systems that continuously learn and adapt.
We are now expanding with a new robotics Engineering center in China, working hand-in-hand with our engineering teams in headquarters. Its mission: to rapidly develop our next-generation full-size humanoid and bring it to life - a walking, working platform that becomes the foundation of our next generation of products. This is a small, senior, hands-on team where speed of iteration is the core value.
We are looking for a Motion Control Engineer to own the control algorithms of every joint in our humanoid - jointly with the embedded team, who implement your designs on the Motor Controller PCB. This is pure actuator control: FOC, loop design, estimation, and compensation. Whole-body behavior lives in learned policies; your job is to make every joint execute its commands perfectly.
Who you are?A motor control specialist who can take a noisy, nonlinear physical joint and make it track like a servo catalog pageEqually fluent in control theory and in what the silicon can actually compute in a 60 kHz loopData-driven: you tune with measurements, plots, and system identification - not by feel aloneResponsibilities:Define and validate the motor control methodology across the robot: FOC and commutation strategies for BLDC motors in quasi-direct-drive configurations with planetary reductionDesign current, velocity, and position/torque control loops; define bandwidths, filtering, anti-windup, and saturation handlingDevelop torque estimation, friction and cogging compensation, and observers for joint stateDefine joint-level safety limits and fault-handling behavior together with embeddedGuide and verify the embedded implementation of your algorithms on the Motor Controller PCB; co-own everything running on that boardDesign and execute structured characterization tests on the joint dyno: torque, speed, resolution, responsiveness, thermal behaviorDeliver validated actuator models and control limitations to the Sim2Real and RL teams - your measured envelopes become their training constraintsDrive improvements in actuation repeatability and responsiveness through precise measurement and feedbackRequirements:B.Sc. or M.Sc. in Electrical, Mechanical, or Control Engineering (or equivalent experience)8+ years in motor control systems or motion system integrationDeep hands-on experience with FOC and current/velocity/position loop design for BLDC motorsFamiliarity with planetary gear systems and QDD architectures, and their impact on control and sensingProven ability to define and lead performance test plans from lab setup to interpretationComfortable using lab tools (oscilloscopes, encoders, current sensors) to evaluate dynamic behavior under load and in closed loopImpedance control and proprioceptive actuation experienceAdvantages:Experience in robotic or humanoid actuation (e.g., actuator teams at Unitree, Wuji) or servo drive companies (e.g., Kinco, Inovance)Familiarity with harmonic gear systems and their control implicationsPython for scripting, system identification, and data analysisUnderstanding of how sensor noise, latency, and actuation limits affect learned whole-body policiesComfortable communicating technical topics in English with international teams