Manufacturing Engineer, Battery
San Carlos, CAFull-timePosted 2w ago
About the role
Battery-focused manufacturing engineer role at 1X responsible for designing, prototyping, validating, and producing battery systems to power the NEO humanoid robot. Collaboration across electrical, mechanical, controls, reliability, manufacturing, and supply chain to deliver safe, high-energy-density battery solutions with strong manufacturability.
Responsibilities
- Own critical elements of NEO’s battery system from architecture and component selection through design, prototyping, characterization, validation, and production
- Develop compact, lightweight, safe, and reliable battery solutions capable of supporting dynamic power requirements
- Work hands-on with cells, modules, packs, test systems, and complete robots; use data from lab testing and real-world operation to improve performance, safety, lifetime, and manufacturability
- 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 charging, discharging, peak power, temperature, aging, and real-world robot duty cycles
- Improve 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 with Electrical, Embedded Software, Mechanical, Controls, Reliability, Manufacturing, and Supply Chain teams to deliver fully integrated energy systems
Qualifications
- Bachelor’s degree in Mechanical Engineering, Electrical Engineering, Chemical Engineering, Materials Science, or related field
- 5+ years of engineering experience developing battery systems, energy storage systems, or complex electromechanical products
- Experience developing fixtures and test equipment
- Experience developing lithium-ion battery packs, modules, cells, or related energy storage systems
- Strong understanding of lithium-ion cell performance, charging and discharging behavior, degradation, thermal behavior, and safety
- Experience with battery pack architecture and integration, including cells, interconnects, sensing, protection, thermal management, and mechanical packaging
- Experience defining and executing battery characterization and validation testing
- Experience analyzing battery performance data and using test results to drive engineering decisions
- Experience with battery safety, fault analysis, failure modes, and design mitigation strategies
- Experience supporting hardware from prototype development through design validation and production
- Experience collaborating with electrical, mechanical, embedded software, manufacturing, quality, reliability, and supply chain organizations
Skills
Required:Battery system designCell and pack characterizationData analysis and first-principlesCross-functional collaboration
Benefits
- Comprehensive medical, dental, and vision coverage
- Generous paid time off, company holidays, and parental leave
- 401(k) plan with company match (100% on the first 3% of contributions, 50% on the next 2%)
- Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA) options
- Commuter benefits (transit and parking)
- Short-term and long-term disability, and life insurance
- Employee Assistance Program (EAP) for mental health, financial, and personal support
- Onsite snacks and catered lunches
Last updated Oct 11, 2026. Interested? Apply on the company site.
About 1X Technologies
1X | Home Robots
We're an AI and robotics company based in Palo Alto, California. We create safe humanoid robots that do your chores and offer personalized assistance.
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