We are looking for a Supplier Development Engineer - Battery based in San Francisco, CA who will provide end-to-end manufacturing and process solutions for the battery systems that power OURA's new and sustaining products. This includes battery cell development and qualification, assembly automation development and line bring-up, cell-to-pack integration into OURA's ring form factors, new supplier bring up, and process technology R&D. This is a hybrid role, the candidate should be based in the San Francisco Bay Area and able to come into the San Francisco office 2-3 days per week. What you will do: • Define best-in-class battery cell, assembly, and integration processes to meet all OURA design, safety, and operational requirements • Partner with Battery/Electrical Engineers, Quality Engineers, Material Engineers, and Product Designers to optimize cell design and manufacturing processes for energy density, cost, cosmetics, and reliability • Identify, research, develop, and qualify battery cell suppliers, pack assemblers, and automation equipment manufacturers in support of OURA's hardware development goals • Lead new battery assembly line and automation bring-up - from equipment specification and buy-off through installation qualification and production ramp • Drive suppliers globally to establish and optimize battery cell fabrication, assembly, and pack-integration processes, ensuring best-in-class quality & resolving production issues • Use data to drive process decisions and influence product and industrial design, including cell dimensions, capacity, tolerances and specifications Requirements We would love to have you on our team if you have: • 3+ years of direct experience working in a battery or electromechanical manufacturing environment as a Supplier Development Engineer, Supply Base Engineer, Manufacturing Engineer, Cell/Battery Process Engineer, Supplier Industrialization Engineer or equivalent role • Experience with lithium-ion / lithium-polymer cell design, fabrication, and/or battery pack assembly and integration • Experience working with global suppliers to establish & qualify manufacturing processes from NPI to Mass Production • Experience bringing up and qualifying automated battery assembly lines and manufacturing equipment • Ability to analyze failure modes and identify process or design root causes • Familiarity with battery safety and regulatory standards (e.g. UN38.3, IEC 62133, UL 1642/2054) a plus • Excellent critical thinking and problem solving skills • Effectively communicate challenges to leadership and cross-functional partners • Ability to travel internationally, up to 15% of the time Benefits At Oura, we care about you and your well-being. Everyone here at Oura has a ring of their own and we are continually looking to improve employee health and add to our benefits! What we offer: • Competitive salary and equity packages • Health, dental, vision insurance, and mental health resources • An Oura Ring of your own plus employee discounts for friends & family • 20 days of paid time off plus 13 paid holidays plus 8 days of flexible wellness time off • Paid sick leave and parental leave • Amazing culture of collaborative and passionate coworkers Oura takes a market-based approach to pay, which may vary depending on your location. US locations are categorized into tiers based on a cost of labor index for that geographic area. While most offers will be closer to the starting range, successful candidates' pay will be determined based on job-related skills, experience, qualifications, work location, internal peer equity, and market conditions. These ranges may be modified in the future. • San Francisco Bay Area: $151,300 - $178,000