Senior Actuator Design Engineer Jobs

Figure

Location:
United States, San Jose

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

150000.00 - 190000.00 USD / Year

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Job Description:

Figure is an AI robotics company developing autonomous general-purpose humanoid robots. The goal of the company is to ship humanoid robots with human level intelligence. Its robots are engineered to perform a variety of tasks in the home and commercial markets. Figure is headquartered in San Jose, CA. We are seeking a passionate and skilled Actuator Design Engineer with a strong background in electric motor mechanical design and integrated geartrain development. You will help define and execute the design of compact, high-torque, and highly efficient actuators for a new generation of humanoid robots. The ideal candidate has hands-on experience in rotor/stator design, geartrain sizing (planetary, harmonic), and bearing arrangement, and is proficient with tools like CATIA and KISSsoft or Romax.

Job Responsibility:

Own the mechanical design of electric actuators, including lamination stacks, high-speed rotors, geartrains, and bearing systems
Design and size planetary gearboxes and other reduction stages to meet torque density, speed, and lifetime requirements
Architect full actuator assemblies including structural layout, thermal path considerations, and serviceability
Lead design of rotor and stator assemblies including magnet retention (adhesives, interference fits), balancing, and burst strength analysis
Perform detailed tolerance stack-ups, shaft fits, bearing life calculations, and structural analysis using FEA
Use KISSsoft or Romax to model gearbox performance, lifetime, and manufacturability
Develop detailed CAD in CATIA and release complete drawing packages for supplier release and internal manufacturing
Collaborate closely with electromagnetic, controls, and system teams to deliver integrated, validated actuator solutions
Support vendor discussions and DFM reviews to ensure robust and scalable production of actuator components

Requirements:

Bachelor’s degree in Mechanical Engineering
3+ years of experience in mechanical design of actuators, electric motors, or gear-driven systems
Strong fundamentals in mechanical design, dynamics, and structural analysis
Proven experience designing planetary or other compact gearbox architectures
Deep understanding of bearing selection, preloading, and life estimation
Proficiency with CATIA (V5 or V6) for complex assemblies and surfacing
Hands-on experience with rotor balancing and high-speed design for rotating systems
Proficient with KISSsoft or Romax for gearbox modeling and optimization
Excellent communication skills and ability to thrive in a fast-paced, cross-functional environment

Nice to have:

Master’s degree in Mechanical Engineering with a focus on machine design or dynamics
Experience designing actuators for robotics, aerospace, or automotive applications
Knowledge of thermal management in compact electromechanical systems
Familiarity with lamination stack-up design, magnet bonding, and motor assembly methods
Experience taking actuator designs from concept through prototyping and into production

Additional Information:

Job Posted:
December 08, 2025

Employment Type:

Fulltime

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Senior Actuator Design Engineer