Staff Mechanical Engineer

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.

Why this job is exciting

• Own the mechanical systems that take NEO from prototype to mass production

• Shape scalable design solutions that meet the demands of high-volume manufacturing

• In time, your work will be in the hands of thousands of humanoids operating around the world

Responsibilities

• Lead the design and development of structural components, mechanisms, and assemblies that meet performance, reliability, and safety requirements

• Own the mechanical product lifecycle from concept and prototyping to validation and volume production

• Partner with manufacturing and supply chain to apply DFM and DFA principles for scalable, cost-effective builds

• Conduct and oversee mechanical analyses including FEA, thermal, and kinematic studies to validate robust design

• Collaborate with cross-functional teams to integrate mechanical systems into full robot architecture

• Create and maintain clear design documentation—3D CAD models, drawings, and specs—for internal and external stakeholders

• Troubleshoot and resolve complex issues arising during prototyping, testing, and production

• Mentor junior engineers and foster a culture of innovation and technical excellence

• Act as a technical authority influencing design decisions and strategic direction in mechanical engineering

Requirements

• 7+ years in mechanical engineering with a track record of delivering complex hardware into high-volume production

• Expertise in CAD modeling and analysis tools (e.g., SolidWorks, CATIA, ANSYS)

• Deep understanding of DFM/DFA principles and manufacturing methods like molding, casting, machining, and forging

• Proven experience developing tight-tolerance, high-reliability mechanical systems

• Background in advanced mechanical analysis including FEA

• Hands-on experience with global suppliers, tooling design, and production ramp-up

• Strong problem-solving ability and a track record of overcoming design challenges

• Clear communicator and effective collaborator with cross-functional teams and stakeholders

• Bachelor’s or Master’s in Mechanical Engineering or related field (PhD a plus)

Nice-to-haves

• Background in robotics, automotive, consumer electronics, or similarly complex hardware systems

Location Policy

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

Not sure if this is you?

If you’re excited about 1X and this role but not sure if you qualify, apply anyway! You may be the right candidate for this or other roles.

1X is an inclusive and equal-opportunity employer that values diversity. We consider all qualified applicants regardless of race, religion, gender, age, sexual orientation, disability, or any other protected class. If you have a disability or special need that requires accommodation, please let us know. We will do our best to accommodate your needs.

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