Senior Mechanical Design Engineer
Deft Robotics
Design
San Francisco, CA, USA
USD 120k-250k / year + Equity
Posted on Mar 11, 2026
What to Expect
- You will own the end-to-end mechanical design of new robotic humanoid hand/end-effector designs for Deft’s next generation wheeled humanoid robot, cooperating with and reporting directly to the CEO.
What you'll do
- Design, prototype, and iterate on multi-DOF hand mechanisms including finger linkages, joint assemblies, and palm structures, optimizing for compactness, weight, payload, and cost.
- Select and integrate actuators (miniature BLDC motors, servos, or tendon-driven systems) and transmission elements (geartrains, pulleys, cable routing) to achieve reliable grasping and basic manipulation.
- Perform structural FEA, tolerance stack-ups, and GD&T for all hand components, and release detailed drawings for machining, 3D printing, and injection molding.
- Drive rapid design-build-test cycles — you'll be in the lab as much as at your desk, assembling prototypes, running tests, and feeding results back into the next revision.
- Collaborate closely with electrical engineering on sensor placement, cable management, and thermal constraints, and with the software team on joint kinematics and control interfaces.
- Manage suppliers to execute projects according to the design specifications and tight timelines.
Required Qualifications
- Bachelor’s or Master’s degree in Mechanical Engineering, Mechatronics or equivalent degree.
- 3+ years of experience designing complex electromechanical assemblies, with at least some work on robotic actuators, mechanisms, or precision mechanisms.
- Track record of taking a complex electromechanical product from concept to production
- High proficiency in designing parts and assemblies using 3D modeling software (CATIA, NX, SolidWorks, Onshape) .
- High proficiency in GD&T engineering drawings and conducting tolerance stack-up analysis.
- DFMEA.
- Hands-on prototyping experience.
- Experience with designing for fabrication methods of low volume manufacturing and high volume manufacturing.
- Basic understanding of electrical and thermal design fundamentals.
- Familiarity with PCBAs and electronics packaging .
- Familiarity with the interdependencies between electronics, mechanics and embedded software
- Excellent communication skills and ability to work in unstructured and high-pressure environments.
- Understanding of how to balance development speed versus product quality.
- Problem solving skills via first principles thinking.
- Growth mindset: curious and hungry to grow.
Preferred Qualifications
- Proficiency in heat transfer and experience in transient thermal analysis .
- Python/Matlab knowledge, both in data structure management, UI development, symbolic equations, and iterative solvers.
Benefits
- Medical, dental & vision plans ($0 payroll deduction)
- Daily meals stipend
Expected Compensation
- $120,000 - $250,000 annually + equity + benefits
- The pay offered for this position may vary based on several individual factors, including job-related knowledge, skills, and experience. The total compensation package may also include additional components/benefits depending on the specific role. This information will be shared if an employment offer is extended.