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# Senior to Staff Mechanical Engnieer

- **Company:** 1X, LLC
- **Location:** San Carlos, CA, United States
- **Experience:** Expert
- **Salary:** $175,950.0 - $253,000.0
- **Contract:** Permanent contract
- **Skills:** Computer-Aided Design, Firmware, Hardware Design, Rapid Prototyping Process, Release Management, Software Reliability Testing, Ansys
- **Published:** July 2, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=034ddb10b7ee1d39

## About the Role

* Strong mechanical engineering fundamentals with exceptional structural and mechanism design capability
 * Hands-on builder who enjoys designing, prototyping, testing, and refining hardware
 * Strong analytical skills with the ability to balance engineering trade-offs across performance, reliability, weight, and manufacturability
 * Excellent collaboration across electrical, firmware, controls, manufacturing, and robotics disciplines
 * Ownership mindset with the ability to independently drive complex hardware development efforts, * Bachelor's or Master's degree in Mechanical Engineering or a related engineering discipline
 * 5+ years of experience designing mechanical systems or electromechanical products
 * Strong proficiency with professional 3D CAD software
 * Excellent understanding of structural mechanics, machine design, and mechanical engineering fundamentals
 * Experience performing structural FEA and engineering validation to support design decisions
 * Hands-on prototyping and laboratory experience
 * Experience with GD&T, tolerance analysis, and production-ready engineering documentation
 * Successfully shipped at least one production hardware product
 * Extensive experience selecting and integrating bearings into precision mechanical systems, * Experience developing robotic or consumer electronics hardware at production scale
 * Experience with ANSYS or equivalent structural simulation tools
 * Knowledge of injection molding, die casting, machining, and other high-volume manufacturing processes
 * Experience designing power transmission systems, robotic joints, or actuator assemblies
 * Familiarity with reliability testing, failure analysis, and design optimization for production hardware, Successful Mechanical Engineers at 1X combine deep technical expertise with a bias toward execution. They enjoy solving difficult multidisciplinary problems, rapidly iterating on hardware, and taking full ownership from initial concepts through production. They understand that exceptional robots are built through rigorous engineering, constant experimentation, and relentless attention to detail.

## Description

* Design and release mechanical components and electromechanical subsystems that meet performance, reliability, and manufacturability requirements
 * Deliver lightweight, high-strength designs through structural analysis, FEA, and rapid design iteration
 * Integrate motors, sensors, PCBAs, cabling, bearings, and power transmission systems into robust robotic assemblies
 * Improve product quality through Design for Manufacturability (DFM), Design for Assembly (DFA), serviceability, and cost optimization
 * Drive hardware from concept through prototype validation, design refinement, and successful production release


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