Prototyping Engineer - Robot Hands Team

Since its founding in 2015, 1X has been at the forefront of developing advanced humanoid robots designed for household use. Our mission is to create an abundant supply of labor via safe, intelligent humanoids. 

We strive for excellence in all we do, solving some of the hardest problems in robotics with the world’s most talented individuals. Every part of our robots is designed and produced in-house—from motor coils to AI—reflecting our vertically integrated approach. At 1X, you’ll own real projects, be recognized for your achievements, and rewarded based on merit.

We believe the best work is done when collaborating and therefore require in-person presence in our office locations. 

We are seeking a Staff Prototyping Engineer to join our Robot Hands Team. This role is for a prototyping wizard who thrives on turning napkin sketches into functional, testable hardware, rapidly iterating to bring groundbreaking ideas to life.

You will work across mechanical, electrical, and software disciplines, debugging complex systems and bridging the gap between concept and real-world implementation. Your work will directly accelerate the development of some of the most advanced robotic hands ever built.

Key Responsibilities

• Rapidly turn concepts into working prototypes, translating rough ideas into functional electromechanical systems.

• Debug full-system issues spanning mechanical (ME), electrical (EE), and software (SW) components, identifying and resolving integration challenges.

• Design and fabricate custom mechanical components using CAD, 3D printing, CNC machining, and rapid prototyping techniques.

• Develop firmware for microcontrollers (MCUs) and implement control logic and communication interfaces in Python, C, or similar languages.

• Bring up and debug custom PCBs, ensuring sensors, actuators, and embedded systems function as expected.

• Iterate at lightning speed, testing and refining designs with fast hardware and software modifications.

• Work closely with mechanical, electrical, and software teams to drive product improvements and uncover new opportunities.

• Hands-on experience with machining, 3D printing, and rapid prototyping techniques for functional hardware development.

• Deep understanding of mechanisms, CAD (SolidWorks).

• Firmware development skills for microcontrollers (C/C++, Python, or similar), with experience in debugging embedded systems.

• Proficiency in PCB bring-up, soldering, and debugging electronic circuits, with hands-on experience troubleshooting complex electromechanical systems.

• A track record of building real, functioning hardware—not just designs, but working prototypes that solve real problems.

• Ability to troubleshoot and debug full-stack issues, spanning mechanical systems, embedded electronics, and control software.

• First-principles problem-solving mindset, with the ability to quickly iterate and improve upon designs.

Location Policy

We believe the best work is done when collaborating and therefore require in-person presence in our office locations.

Typical interview process 

• Introductions - interviews to learn more about you and talk about 1X and the role

  • Interview with a member of the Talent Acquisition team

  • Hiring manager / senior team member / technical interview

• Team interviews - technical interviews and deep-dives with team members. May include a take home challenge, presentation or problem-solving exercise

  • Technical deep-dive conversation with a team member 

  • Onsite interviews with team members 

• Final stages - you move to the final round

  • Expectation management with the hiring manager 

  • We will conduct reference checks

  • Job offer conversation 

Depending on the role and your background, additional interviews may be added. You are also welcome to request additional conversations with anyone you would like to meet, but didn’t get to meet during the interview process.

We are a value driven team
These are the ideas that express our team’s culture and how we work:

Be Nice

Collaboration is our driving force. Our team creates an open, trusting environment where everyone can be their most creative.

Stay Smart

A world-changing team needs the brightest minds in every discipline. This is where people come to work, learn, and grow to their full potential.

Make History

Everything we do gets us closer to one ambitious vision: Creating an Abundant Supply of Labor using Safe, Intelligent Humanoids. We believe what we build today will impact generations.

We are an inclusive environment and value diversity of background, experiences and thought, and welcome applicants from diverse backgrounds to contribute to our mission.

We're excited to get to know you and the prospects of having you on board!