Mechanical Product Design Engineer – Humanoid Robots

Location: Remote / USA Company: APEX Cybernetics Type: Part-Time APEX Cybernetics is building the next generation of affordable humanoid robots for real-world applications. We are looking for a Mechanical Product Design Engineer who is passionate about robotics, skilled in product design, and comfortable diving deep into open-source humanoid platforms to reverse-engineer, improve, and innovate. Role Overview You will lead the mechanical design for our humanoid robot platform—covering structural design, joints, linkages, materials, fabrication methods, and manufacturability. You’ll analyze open-source humanoid robot designs, extract insights, and create improved, cost-efficient, high-performance mechanical architectures. Responsibilities • Design and develop mechanical systems for a humanoid robot (torso, arms, legs, joints, frames). • Study open-source humanoid robot models (e.g., Jimmy, Unitree open platforms, etc.) and perform reverse engineering to extract design patterns. • Rapidly prototype and iterate structural components. • Create detailed 3D CAD models, engineering drawings, and simulation analyses. • Optimize designs for low cost, manufacturability, and durability. • Select materials, actuators, bearings, transmission elements, and mechanical components. • Collaborate closely with electrical, control, and software teams to ensure seamless integration. • Work with manufacturing/OEM vendors for production-ready designs. • Support assembly, testing, and continuous improvement. Requirements • Bachelor’s or Master’s in Mechanical Engineering, Mechatronics, Robotics, or related field. • Strong experience in 3D CAD (SolidWorks, Fusion 360, Onshape, or similar). • Experience designing robotics hardware—preferably humanoids, robotic arms, actuators, or complex mechanisms. • Ability to analyze and reverse-engineer open-source robotics designs. • Knowledge of materials, kinematics, linkages, mechanical transmissions, and actuator integration. • Understanding of manufacturing processes (CNC, sheet metal, plastics, carbon fiber, aluminum alloys, etc.). • Strong problem-solving and rapid prototyping skills. Bonus Skills • Experience with harmonic drives, cycloidal drives, gearboxes, or actuator design. • Familiarity with ROS, embedded systems, and control theory. • Hands-on experience building robots from scratch. • Knowledge of FEA, motion simulation, and stress analysis tools. What We Offer • Opportunity to design a humanoid robot from the ground up. • Work with an ambitious startup on cutting-edge robotics. • Flexible work environment. • High impact, fast-paced engineering culture. Job Type: Part-time Pay: $80,047.65 - $96,401.47 per year Expected hours: 20 per week Work Location: Remote Apply Now Apply Now