Mechanical Engineer Tech Lead

Here at Humanoid, we believe in a future where robots amplify human potential. That’s why we’ve set out on a mission to build the world’s most capable, commercially-scalable, and safe humanoid robots. We’re bringing that mission to life with HMND‑01 Alpha - our rapidly developed humanoid platform now running in real industrial pilots - and we’re growing the team to take it even further.

• Lead Technical Direction: Own the mechanical design strategy and architecture for end-effector products, setting technical direction and ensuring consistency and quality across the team.
• Lead Design & Reviews: Lead design reviews and mentor mechanical engineers, raising the technical bar across the team.
• Lead Requirements Development: Work directly with customers and internal stakeholders to gather and define requirements, translating them into clear design specifications.
• Own Mechanical Design: Design and guide mechanical components, assemblies and enclosures end-to-end using 3D CAD (Siemens NX), from concept through to manufacturing-ready drawings.
• Integrate Mechatronic Systems: Integrate cameras, sensors, PCBAs and other mechatronic devices into mechanical assemblies, working closely with electrical and firmware engineers.
• Balance Design Trade-offs: Weigh weight, durability, ergonomics and manufacturability requirements to arrive at the right solution for each design.
• Select Materials & Processes: Choose appropriate materials and manufacturing processes, including 3D printing, CNC machining, sheet metal and injection moulding.
• Own Test & Evaluation: Define and lead test and evaluation plans to validate designs against requirements, including structural, environmental and durability testing.
• Apply DFM/DFA: Apply design-for-manufacture and design-for-assembly principles as designs move from prototype to production.

• Degree in Mechanical Engineering, Mechatronics, or a related discipline, with 6+ years' experience in mechanical design for robotics, hardware, or complex electromechanical products.
• Proven track record of successfully delivering complex electromechanical or robotic systems from concept through to production.
• Proven experience leading or mentoring mechanical engineers and driving technical direction on complex electromechanical products.
• Experience leading requirements development and test/evaluation planning with customers or stakeholders.
• Proficiency in 3D CAD (Siemens NX preferred), including GD&T and tolerance stack-up analysis.
• Experience designing for 3D printing, CNC machining, injection moulding and sheet metal, with hands-on rapid prototyping experience.
• Experience integrating electromechanical assemblies — cameras, sensors, PCBAs, connectors, cable routing and enclosures.
• Practical understanding of DFM/DFA principles and comfort working iteratively in a high-paced engineering environment.
• Nice to have: FEA/simulation experience for stress, fatigue or thermal analysis; Line management or people-leadership experience; Exposure to small-batch or production manufacturing hand-off.

• Competitive equity: stock options with meaningful upside as we scale.
• 30+ paid days off, including 23 days of annual leave, all UK bank holidays, and additional company closure days (including Christmas–New Year shutdown).
• Private healthcare, including virtual and in-person care.
• Pension scheme with 8% total contribution (5% employee, 3% employer) on full earnings.
• Free daily breakfast, catered lunch, and snacks in-office.
• Work at the frontier - collaborate daily with world-class engineers, researchers, and product experts building the next generation of AI and humanoid robotics.
• Real ownership - direct access to founding leadership, meaningful input on product direction, and the ability to drive key initiatives from day one.