Supplier Development Engineer, Battery

ŌURA; San Francisco (CA); Hybrid; USD 151,000 - 178,000; Full time

Benefits offered by this job

Equity package

Health, dental, vision insurance

Oura Ring for you

Paid time off

Holidays & wellness time off

Sick leave & parental leave

Collaborative culture

Hybrid work schedule

Job summary

ŌURA is seeking a Supplier Development Engineer – Battery in the San Francisco Bay Area to drive end-to-end battery system development for our ring products. The role focuses on cell design, pack integration, automation, and supplier qualification, with 2-3 days per week in the San Francisco office.

You will lead line bring-up, collaborate with cross-functional teams, and manage global suppliers to ensure safety, energy density, and reliability. Hybrid work arrangement available in the Bay Area.

Qualifications

• 3+ years of direct experience in battery or electromechanical manufacturing.
• Experience with lithium-ion / lithium-polymer cell design, fabrication or battery pack assembly and integration.
• Experience with global suppliers from NPI to Mass Production.
• Experience bringing up automated battery assembly lines and manufacturing equipment.
• Ability to analyze failure modes and identify root causes.
• Familiarity with battery safety and regulatory standards (UN38.3, IEC 62133, UL 1642/2054) preferred.
• Excellent critical thinking and problem solving skills.
• Strong communication with leadership and cross-functional partners.
• Ability to travel internationally up to 15%.

Responsibilities

• Define best-in-class battery cell, assembly, and integration processes.
• Collaborate with Battery/Electrical, Quality, Materials, and Product Design teams to optimize design and processes.
• Identify and qualify battery cell suppliers, pack assemblers, and automation equipment manufacturers.
• Lead new battery assembly line and automation bring-up from spec to production ramp.
• Drive global suppliers to establish and optimize cell fabrication, assembly, and pack integration processes.
• Use data to influence product and industrial design, including cell dimensions and tolerances.

Skills

Battery manufacturing

Supplier development

Process optimization

Data analysis

Job description

Our mission at Oura is to empower every person to own their inner potential. Our award-winning products help our global community gain a deeper knowledge of their readiness, activity, and sleep quality by using their Oura Ring and its connected app. We've helped millions of people understand and improve their health by providing daily insights and practical steps to inspire healthy lifestyles. Empowering the world starts with living our values and empowering our team. As a quickly growing company focused on helping people live healthier and happier lives, we ensure that our team members have what they need to do their best work — both in and out of the office.

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

• 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

• 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
• San Francisco Bay Area: $151,300 - $178,000

Oura is proud to be an equal opportunity workplace. We celebrate diversity and are committed to creating an inclusive environment for all employees. Individuals seeking employment at Oura are considered without regard to age, ancestry, color, gender (including pregnancy, childbirth, or related medical conditions), gender identity or expression, genetic information, marital status, medical condition, mental or physical disability, national origin, protected family care or medical leave status, race, religion (including beliefs and practices or the absence thereof), sexual orientation, military or veteran status, or any other characteristic protected by federal, state, or local laws. We will not tolerate discrimination or harassment based on any of these characteristics. We will work to ensure individuals with disabilities are provided reasonable accommodation to participate in the interview process, to perform essential job functions, and to receive other benefits and privileges of employment.