About 1X

We’re building humanoid robots that work in home - doing the chores, handling the tasks, and giving people their time back. Simple, but it’s not.

To do this right, we have to solve robotics, AI, manufacturing - at the same time, at scale, in a form factor that has to be safe enough to live with your family. If you’re inspired by this, you’ll thrive here. We’ve been at this since 2014 and we’re at the point where the hard problems are behind us and the hard work is in front of us.

NEO is our flagship - a home robot designed to move, learn, and operate in the real world alongside real people. We’re not demoing it - we’re shipping it. We’re excited to meet you, if this excites you.

If you’ve spent your career working on problems that matter and want to see them actually reach the world - this is that moment. We’re scaling, we’re hiring with intention, and we need people who want to build something that will genuinely change how humans spend their time - safely creating abundance for all.

About the Team

The Battery team develops the energy storage systems that power NEO. We design and validate battery systems that must deliver high energy density, power, safety, reliability, and long cycle life while operating within the demanding weight, volume, thermal, and packaging constraints of a humanoid robot.

Our work spans battery cells, pack architecture, mechanical integration, electrical systems, battery management, thermal management, charging, safety, validation, and manufacturing. We partner closely with Electrical, Mechanical, Controls, Embedded Software, Reliability, Manufacturing, and Supply Chain teams to deliver battery systems that perform safely and consistently in real-world environments.

Your Charter

Build the battery systems that keep humanoid robots moving.

You will own critical elements of NEO’s battery system from architecture and component selection through design, prototyping, characterization, validation, and production. You will develop compact, lightweight, safe, and reliable battery solutions capable of supporting the dynamic power requirements of a humanoid robot operating every day around people.

You will work hands-on with cells, modules, packs, test systems, and complete robots, using data from laboratory testing and real-world operation to continuously improve performance, safety, lifetime, and manufacturability.

Key Outcomes

Design and release production-ready battery systems that meet energy, power, weight, volume, thermal, safety, reliability, cost, and manufacturability requirements

Develop battery pack architectures integrating cells, busbars, interconnects, sensing, protection, BMS hardware, thermal management, enclosures, and structural interfaces

Define and validate cell and pack performance requirements across charge, discharge, peak power, temperature, aging, and real-world robot duty cycles

Improve battery energy density, power capability, thermal performance, cycle life, reliability, and serviceability through iterative engineering and testing

Develop characterization and validation methods for cells, modules, packs, charging systems, and battery safety

Identify battery failure modes through testing and data analysis and drive design improvements and corrective actions

Support battery hardware through prototype builds, design validation, NPI, supplier qualification, and production ramp

Partner closely with Electrical, Embedded Software, Mechanical, Controls, Reliability, Manufacturing, and Supply Chain teams to deliver fully integrated energy systems

Key Competencies

Strong engineering fundamentals across battery systems, electrochemistry, electrical systems, thermal management, and hardware development

Ability to design fixtures and test equipments.

Deep understanding of lithium-ion battery behavior, including energy, power, impedance, degradation, thermal performance, and cycle life

Strong understanding of battery pack architecture, including cells, interconnects, busbars, sensing, protection, thermal systems, and mechanical packaging