Assembly Process Engineer

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 improve. We offer an exceptional opportunity to participate in building next-generation commercial humanoid robots from 0 to 1, alongside competitive compensation, and an international engineering environment. We are 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 platform and bring it to production.

We are looking for an Assembly Process Engineer to design, establish, optimize, and scale electro-mechanical assembly processes, assembly tooling, work instructions, line balancing, and quality verification checkpoints for our full-scale humanoid robots and integrated joint modules.

Who you are?

Assembly engineering specialist deeply experienced in precision electro-mechanical assembly, production line routing, error-proofing (Poka-Yoke), and cycle-time optimization.

Hands-on maker who spends time on the pilot line validating work instructions, designing ergonomic assembly jigs, and tackling assembly non-conformances.

Continuous improver dedicated to DFM/DFA feed-forward, PFMEA, standardized work, and transitioning prototype designs into scalable batch production.

A strong collaborator across mechanical design, harness, quality control, and shop-floor technicians.

What will your job look like:

Develop end-to-end assembly process routes, standard operating procedures (SOPs), process flowcharts, and PFMEAs for humanoid joints and whole-body integration.

Design custom assembly fixtures, alignment jigs, press-fitting tools, and cable routing templates to guarantee high precision and repeatable quality.

Drive DFM/DFA (Design for Manufacturing / Design for Assembly) reviews with structural and electrical hardware teams to optimize joint integration and ease of assembly.

Define precise fast-fastening torque specifications, thread locking compound procedures, potting/thermal paste dispensing, and cable harness routing rules.

Plan pilot assembly line layouts, workstation ergonomics, assembly line balancing, cycle time targets (Takt time), and capacity expansion roadmaps.

Train assembly technicians, manage pilot batch assembly operations, track pass rates, and resolve dynamic production bottlenecks.

Implement Poka-Yoke (error-proofing) solutions, torque-tracking smart tools, and end-of-line quality verification gates.

Collaborate with supply chain and quality teams to establish incoming component inspection (IQC) tooling and fixture standards.

All you need is:

B.Sc. in Mechanical Engineering, Manufacturing Engineering, Industrial Engineering, or related technical fields.

7+ years of assembly process engineering experience in precision electro-mechanical assemblies, robotics, automotive subsystems, or complex machinery.

Mastery of 3D CAD tools (SolidWorks, Creo, or NX) for fixture design and 3D assembly sequence simulation.

Proven track record in developing SOPs, PFMEAs, assembly line balancing, and cycle time (Takt time) reduction.

Deep knowledge of precision assembly methods: bearing press-fitting, preload adjustment, adhesive potting, torque control, and dense harness routing.

Strong root-cause problem-solving capabilities (8D, 5-Why) and practical experience with Lean Manufacturing principles.

Excellent interpersonal and communication skills for training technicians and interfacing with design engineering teams.

Nice to have:

Direct experience establishing assembly lines for humanoid robots, robotic arms, quadrupeds, or precision joint actuators.

Experience with semi-automated press-fit equipment, smart electric screwdrivers with data logging, and MES systems.

Familiarity with NPI (New Product Introduction) process gates and prototype-to-mass-production transfer.

Comfortable communicating technical topics in English with international teams.