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Manufacturing Engineer
Redwood Materials
San Francisco, CA, USA
USD 120k-180k / year
Posted on Aug 16, 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.
Manufacturing Engineer
Essential Duties:
We are looking for a highly capable and hands-on Manufacturing Engineer to drive the development, optimization, and scaling of production lines for a complex high-voltage system. This system includes high-power electronics, thermal components, and electromechanical integration. You'll work closely with CMs, test engineering, and product design teams to scale cost-effective, high-yield processes.
Responsibilities Will Include:
- Define manufacturing process flows, build station-level process documentation, and create tooling and fixture requirements for product assembly and test
- Partner with CMs to bring up new lines, run capacity models, and validate takt times, throughput, and line balance
- Troubleshoot issues on the line and drive corrective actions for yield, first-pass success rate, and build quality
- Own DFM and DFT efforts, providing clear, actionable feedback to engineering
- Collaborate with quality and test engineering to ensure process stability, traceability, and defect containment
- Analyze production data and develop dashboards to identify trends, bottlenecks, and cost-reduction opportunities
- Develop ramp plans and execution tracking for NPI and scale transitions
Desired Qualifications:
- B.S. in Mechanical, Electrical, or Manufacturing Engineering (or related)
- 3+ years of experience in production support or NPI for high-power electronics or electro-mechanical assemblies
- Strong technical knowledge of SMT, reflow, box build, mechanical assembly, and HV safety processes
- Ability to write and maintain SOPs, work instructions, and training document
- Experience working with CMs on high-volume production environments
- Familiarity with MES systems, Python/SQL for data extraction, or Lean Six Sigma certification
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:
$120,000—$180,000 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.