Supplier Development Engineer, Battery

United States Digital Space LLC; San Francisco (CA); Hybrid; USD 151,000 - 178,000; Full time

Benefits offered by this job

Salary & equity

Health, dental, vision

Mental health resources

Employee discounts

PTO & holidays

Sick leave

Collaborative culture

Job summary

the company is seeking a Supplier Development Engineer - Battery in the San Francisco Bay Area for end-to-end manufacturing and process solutions across battery cells, assembly, and pack integration. This hybrid role requires close collaboration with engineers and designers to meet safety, cost, and reliability goals.

You will lead new line and automation bring-up, qualify suppliers worldwide, and use data to drive decisions on cell dimensions and specifications. Travel up to 15% may be required.

Qualifications

• 3+ years in battery or electromechanical manufacturing as a supplier/manufacturing engineer.
• Experience with lithium-ion/LiPo cell design, fabrication, and/or battery pack assembly.
• Experience qualifying manufacturing processes from NPI to Mass Production.
• Experience bringing up automated battery assembly lines and equipment.
• Ability to analyze failure modes and identify root causes.
• Familiarity with battery safety and regulatory standards (UN38.3, IEC 62133, UL 1642/2054) a plus.
• Willingness to travel internationally up to 15%.

Responsibilities

• Define best-in-class battery cell, assembly, and integration processes meeting design, safety, and operational requirements.
• Partner with Battery/Electrical, Quality, Material, and Product Designers to optimize cell design and manufacturing for energy density and reliability.
• Identify, research, and qualify battery cell suppliers, pack assemblers, and automation equipment manufacturers.
• Lead new battery assembly line and automation bring-up from equipment spec to production ramp.
• Drive suppliers globally to optimize battery fabrication and integration, ensuring quality and resolving issues.

Skills

Battery manufacturing

Supplier development

Automation

Process engineering

Global suppliers

Regulatory awareness

Travel readiness

Job description

Our mission at the company 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 the company 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 the company’s new and sustaining products. This includes battery cell development and qualification, assembly automation development and line bring-up, cell-to-pack integration into the company’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 the company 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 the company’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 the company, we care about you and your well-being. Everyone here at the company 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 the company 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

the company 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

the company 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 the company 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.