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Supplier Quality Engineer, Energy Storage
Redwood Materials
Quality Assurance
San Francisco, CA, USA
USD 136k-184k / year
Posted on Aug 21, 2025
About Redwood Materials
Redwood is localizing a global battery supply chain that seamlessly integrates recovery, reuse, and recycling — keeping critical minerals in circulation and driving the energy transition. Founded in 2019, we’re delivering low-cost and large-scale energy storage and producing battery materials in the U.S. for the first time, all from batteries we already have.
Supplier Quality Engineer, Energy Storage
Essential Duties:
As a Supplier Quality Engineer, you will ensure that the components and subassemblies provided by external suppliers meet all functional, mechanical, and reliability requirements. You will play a crucial role in qualifying suppliers, validating new parts, and improving supplier performance during ramp and sustaining production of a high-voltage, PCBA-based energy product.
You’re a doer, excited about getting your hands dirty and working in a dynamic, fast-paced setting, and want to shape a new department at Redwood.
Responsibilities Will Include:
- Conduct supplier audits (process, system, product) and risk assessments to qualify new sources and ensure readiness for mass productio
- Lead PPAP/FAI activities and define incoming inspection criteria based on part criticality
- Partner with GSMs, Design Engineers, and CMs to align specifications, tolerance stack-ups, and process controls
- Manage supplier non-conformances, lead 8D investigations, and follow through to verification of effectiveness (VOE)
- Create and maintain supplier scorecards with clear KPIs such as PPM, delivery performance, and responsiveness
- Support NPI builds and DFM feedback loops with early supplier engagement and pilot line walkthroughs
- Build a strong network of supplier partners with robust process maturity, reliability, and capacity
Desired Qualifications:
- B.S. in Mechanical, Electrical, or Industrial Engineering
- 4+ years of supplier quality experience in high-voltage, power electronics, automotive, or industrial hardware environments
- Deep understanding of PCBA, harnessing, connectors, and mechanical fabrication (CNC, casting, plastics)
- Familiarity with APQP, PPAP, SPC, DFMEA/PFMEA, and ISO9001/IATF16949 systems
- Ability to travel up to 30% to supplier locations (domestic and international)
Physical Requirements:
- Ability to perform the essential job functions consistent safely and successfully with the ADA, FMLA and other federal, state and local standards, including meeting qualitative and/or quantitative productivity standards.
- Ability to maintain regular, punctual attendance consistent with the ADA, FMLA and other federal, state, and local standards
Working Conditions:
- Environment, such as office or outdoors.
- Ability to work in challenging working conditions which may include exposure to noise, dust, chemicals, and temperature extremes, while protected by PPE, for extended periods of time.
- Essential physical requirements, such as climbing, standing, stooping, or typing.
- Occasional work weekends, nights, or be on-call as a regular part of the job.
- Occasional travel requirements.
In accordance with California pay transparency laws, the salary range for this position is listed below. Actual compensation may vary based on a variety of factors, including experience, education, and skills.
California Pay Range:
$136,000—$184,000 USD
The position is full-time. Compensation will be commensurate with experience.
We collect personal information (PI) from you in connection with your application for employment with Redwood Materials, including the following categories of PI: identifiers, personal records, professional or employment information, and inferences drawn from your PI. We collect your PI for our purposes, including performing services and operations related to your potential employment. If you have additional privacy-related questions, please contact us at privacy@redwoodmaterials.com.