- Robot type
- Humanoid
- Location
- FremontCaliforniaUSA
- Job type
- Hardware
- Posted
- Dec 21, 2025
- Salary
- $120,000–$300,000 a year
Full-time
Senior Mechanical engineer
Job description
Dexmate is building the foundation for physical AI — combining a new generation of robots with a universal Physical AI OS, making robots as easy to build and deploy as software. Today, robotics is fragmented, slow, and closed: most builders are forced to reinvent the same stack again and again, and most ideas never make it past the prototype stage. We exist to change that. Our mission is to democratize robotics by lowering the barrier to entry, delivering a plug-and-play platform for developers, researchers, and enterprises, and cultivating an open ecosystem that accelerates the evolution of physical AI.
Job responsibilities
- Design parts and assemblies in 3D CAD that satisfy load conditions, form factor constraints, range-of-motion requirements, and durability targets
- Determine component-level mechanical requirements (stiffness, strength, fatigue, thermal) from system-level functional specs
- Apply analytical methods — FEA, tolerance stack-up, kinematic analysis — before releasing designs for prototyping or production
- Generate accurate 2D drawings with GD&T per ASME Y14.5 appropriate for both prototype and production inspection methods
- Build prototypes to test assembly, range of motion, wire routing, and integration with adjacent subsystems
- Design and build test stands and fixtures; conduct structured validation testing and document results rigorously
- Own the prototype-to-production transition for your subsystems: apply DFM/DFA principles from the first design iteration, not as a final step;
- Work with suppliers to select and qualify parts; inspect first articles, perform root cause analysis on failures, and drive corrective action through to closure
Job requirements
- 5+ years of mechanical engineering experience in robotics, industrial automation, automotive, aerospace, or consumer electronics — with at least one product shipped to production
- Expert proficiency in 3D CAD (SolidWorks, NX, CATIA, Onshape, or equivalent) for complex parts and assemblies with tight tolerances
- Mastery of GD&T per ASME Y14.5 and the ability to create production-ready 2D drawings
- Experience with actuators and transmission systems: strain-wave (harmonic), planetary, cycloidal gearing, or direct-drive
- Hands-on experience with structural analysis (FEA) and tolerance stack-up analysis as part of routine design validation
- Proven electromechanical integration experience: motors, sensors, encoders, wire harnesses, and connectors in tight mechanical envelopes
- Demonstrated ability to take a mechanical design from working prototype to production-ready — including DFM iterations, supplier qualification, first-article inspection, and manufacturing yield validation;
- Deep familiarity with modern manufacturing processes and when to apply each: CNC machining (3- and 5-axis), injection molding, die casting, sheet metal fabrication, MIM (metal injection molding), investment casting,…