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1X

Mechanical Engineer - Actuators

San Carlos, CA$107.7k–$161.5kfulltimemidAdded yesterday

About this role

1X is seeking a Mechanical Engineer to design and develop electromechanical actuator systems for NEO, a humanoid home robot. You'll lead mechanical design from concept through production, collaborating across electrical, controls, and manufacturing teams to deliver high-performance, reliable actuators.

What you'll do

  • Design actuator components and assemblies meeting performance, packaging, reliability, and manufacturability requirements
  • Create CAD models, engineering drawings, BOMs, tolerance definitions, and interface documentation
  • Conduct rapid prototyping, testing, failure analysis, and iterative design refinement
  • Integrate mechanical, electrical, sensing, and electromagnetic components into complete actuator systems
  • Support transition of actuator designs from prototypes to production-ready hardware
  • Collaborate with electrical, controls, firmware, test, and manufacturing teams on design decisions

What they're looking for

  • Mechanical design and CAD (SolidWorks, Onshape, Inventor, or equivalent)
  • Tolerances, fits, materials, and structural design fundamentals
  • Electric motors and electromagnetic systems
  • Bearings, gears, shafts, and power transmission
  • Engineering drawing and technical documentation
  • Prototype assembly, testing, and troubleshooting
  • Design for manufacturability
  • Multidisciplinary team collaboration
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1X

1X builds humanoid robots for home use, with its NEO robot requiring sophisticated hardware, firmware, and cloud systems. The company is hiring across compliance testing, audio systems, embedded firmware, cloud platform development, and supplier engineering to bring its robots to production and scale.

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Likely interview questions

  • Walk us through a recent actuator or electromechanical system you designed—what were the key constraints and how did you solve them?
  • How do you approach tolerance and fit definition for critical mechanical interfaces, especially in high-precision assemblies?
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