Senior Mechanical Engineer

About 1X

We’re an AI and robotics company based in Palo Alto, California, on a mission to build a truly abundant society through general-purpose robots capable of performing any kind of work autonomously.

We believe that to truly understand the world and grow in intelligence, humanoid robots must live and learn alongside us. That’s why we’re focused on developing friendly home robots designed to integrate seamlessly into everyday life.

We’re looking for curious, driven, and passionate people who want to help shape the future of robotics and AI. If this mission excites you, we’d be thrilled to hear from you and explore how you might contribute to our journey.

Role Overview

We are seeking a Mechanical Design Engineer to lead the design and development of critical systems for our humanoid robot, NEO. In this role, you’ll design and validate high-performance robotic joints, transmissions, and sensor-integrated assemblies, ensuring that they are optimized for both performance and manufacturability. Your work will directly impact the scalability of humanoid robots from R&D into full-scale production and deployment across homes and industries worldwide.

Responsibilities

Design, prototype, and validate electromechanical systems for humanoid robots

Integrate electronics, sensors, and cabling into compact, multi-DoF joint packages

Optimize assemblies for weight, reliability, manufacturability, and cost efficiency

Perform structural FEA simulations to validate robust designs

Produce high-quality CAD models, drawings, and specifications for manufacturing partners

Author design documentation including requirements, specifications, and test plans

Requirements

Bachelor’s or higher degree in Mechanical or Aerospace Engineering

Proficiency with CAD tools (SolidWorks preferred)

Experience performing structural FEA simulations

Strong understanding of manufacturing methods for mid- to high-volume production

Proven experience taking complex mechanical systems from concept through production

Bonus : Experience with DFM for casting or forging processes

Bonus : Background in robotics system design, kinematics, or dynamics

Bonus : Familiarity with FMEA for design validation

Bonus : Experience developing multi-DoF mechatronic systems

Bonus : Exposure to PCB design workflows

Benefits & Compensation

Health, dental, and vision insurance

401(k) with company match

Paid time off and holidays

Equal Opportunity Employer

1X is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, ancestry, citizenship, age, marital status, medical condition, genetic information, disability, military or veteran status, or any other characteristic protected under applicable federal, state, or local law.

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