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 Testing & Validation Engineer to own quality across the humanoid program: from joint-level dyno and life testing to full-system benchmarking and shipment readiness before delivery to headquarters. You define what 'done' means - for every component and for the robot.

Who you are?

A test engineer with strong mechatronics intuition - you understand what you are measuring
Structured and data-driven, but pragmatic about what a prototype actually needs
Comfortable being the gatekeeper

Responsibilities:

Build and operate the joint test infrastructure: dyno setups for torque, speed, efficiency, thermal, and life testing of actuator modules
Define and execute component-level verification for boards, batteries, harnesses, and sensors with the responsible engineers
Own integration verification at every stage: leg on bench, robot on gantry, free-standing, walking
Define and run full-system performance benchmarking (payload, speed, endurance, repeatability) and reliability assessment
Build the acceptance criteria and shipment-readiness process for every robot and subsystem delivered to headquarters
Develop test automation (Python) and maintain traceable test records tied to hardware and firmware revisions
Feed structured failure analysis back into design - you close the iteration loop

Requirements:

B.Sc. in Mechanical, Electrical, or Mechatronics Engineering
5+ years in testing and validation of electromechanical systems: robotics, automotive, or automation
Hands-on experience building test rigs and instrumentation (torque sensors, current probes, thermal measurement, data acquisition)
Strong data analysis skills; Python proficiency for test automation and reporting
Experience in defining verification plans, acceptance criteria, and reliability/life test programs
Fluent English for cross-site collaboration with headquarters

Advantages:

Experience at humanoid/robot companies (Unitree, UBTech, Fourier), cobot firms (JAKA, Dobot, AUBO), or automotive (BYD, Xiaomi, Xpeng, NIO)
Actuator/servo dyno testing experience
Familiarity with HIL testing and firmware validation
Exposure to safety and compliance standards for robotics