Senior System Modeling Engineer
Redwood Materials
Senior System Modeling Engineer
Redwood Materials
Recycles lithium-ion batteries into materials
About Redwood Materials
Redwood Materials was founded in 2017 by JB Straubel, co-founder and former CTO of Tesla, on a simple but radical idea: the critical minerals powering the energy transition already exist. They just need to come back. Today Redwood is the largest lithium-ion battery recycler in North America — recovering, refining, and redeploying critical minerals from end-of-life batteries back into the supply chain. On the energy side, Redwood has deployed the largest second-life battery project in the world, delivering power to AI data centers in months rather than years using proprietary energy architecture engineered entirely in-house. The company is profitable, the market it operates in is projected to grow 20 to 50 times over the next decade, and Redwood is the only company with the supply chain, the technology, and the operational scale to lead it.
System Modeling Engineer, Redwood Energy
You will be an early member of a new engineering team, taking a hands-on role in the design, development, and integration of a new product. This position focuses on developing Multiphysics modeling platform to drive the system design of a novel energy storage system. These models must be robust enough to support multiple users, but agile enough to quickly drive a diverse array of design decisions.
The ideal candidate is highly self-driven, adaptable to a startup environment, and eager to take on novel technical challenges. If you’re excited about working in a dynamic, fast-paced setting within a new department at Redwood, we want to hear from you!
If necessary, the job level will be adjusted to suit the applicant’s experience and responsibilities.
Responsibilities will include:
Desired Qualifications:
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.
The position is full-time. Compensation will be commensurate with experience.
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California Pay Range: 162500 - 215000 USD
Recycles lithium-ion batteries into materials
Redwood Materials builds a circular supply chain for lithium-ion batteries. It collects end-of-life batteries and manufacturing scraps, recovers most of the valuable minerals using its own processes, and then refines and remanufactures those materials into essential battery components like cathode active materials and anode copper foil, which are sold to battery manufacturers. In 2025 it added Redwood Energy to repurpose used EV batteries into grid-scale energy storage systems. The company differentiates itself through vertical integration across the full value chain—collection, recycling, refining, and remanufacturing—plus a focus on domestically sourced materials, high recovery rates, and partnerships with large automakers and battery makers. Its goal is to create a sustainable, domestic, closed-loop supply of battery materials to support electric vehicles and grid storage while reducing waste and dependence on imported minerals.
Explore more opportunities at Redwood Materials