Redwood Materials is an American clean energy company headquartered in Sparks, Nevada, focused on securing domestic supplies of critical battery materials and providing large-scale energy storage solutions. The company recycles end-of-life batteries to recover lithium, nickel, cobalt, and copper, creating one of the largest domestic sources of these critical minerals in the United States. Its operations support the broader transition away from reliance on foreign supply chains for materials essential to electric vehicles and energy storage systems. Through its Redwood Energy division, the company designs, integrates, and deploys large-scale energy storage systems for data centers and the national grid, utilizing both new and repurposed batteries to deliver cost-effective solutions. Redwood Materials partners with major automotive, technology, and energy companies including Volkswagen Group of America, Panasonic, GM Ultium Cells, Toyota, BMW, Amazon, Volvo, and Southern Company, reflecting its central role in the emerging domestic battery supply chain. Founded by former Tesla Chief Technology Officer JB Straubel, Redwood Materials was established with the mission of building a circular economy for batteries, reducing waste, lowering the carbon footprint of energy storage, and strengthening American energy independence. The company holds ISO 45001 and ISO 14001 certifications, underscoring its commitment to occupational health, safety, and environmental management standards.
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 2017, 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.
Software Engineer, ML/Computer Vision (Battery Sorting)
The Battery Sorting team at Redwood Materials is building a world-class, ML-enabled sorting platform that uses computer vision and machine learning to classify and route thousands of end-of-life batteries per hour across diverse chemistries and form factors. This role sits at the intersection of software engineering and machine learning, with direct ownership of the production systems powering automated battery sorting on the factory floor. The ideal candidate is equally comfortable debugging a production incident as iterating on a model, and will have the opportunity to generate patents in automated battery classification. This is a high-impact, highly visible role with immediate real-world application in advancing the energy transition.
Hours
Full-time | Schedule may vary depending on site operational needs; flexibility required
Responsibilities will include:
- Develop, test, and maintain production software systems powering automated battery sorting, spanning ML inference, image acquisition, sensor integration, and hardware-adjacent control interfaces
- Train and deploy computer vision models for battery chemistry classification, including dataset annotation, preprocessing, and evaluation within established data pipelines
- Build and maintain services and APIs that connect ML outputs to downstream systems including MES, HMI, and PLC/controls interfaces
- Own observability across the production software stack through structured logging, metrics dashboards, alerting, and on-call triage for inference pipelines and supporting services
- Monitor model performance in production to catch regressions or distribution shifts and drive iterative improvements through data analysis and retraining
- Contribute to infrastructure-as-code and CI/CD workflows to validate, version, and deploy application code and ML model artifacts to production environments
- Collaborate cross-functionally with Controls, Hardware, Manufacturing, DevOps, and IT teams to translate operational needs into software and model improvements
Desired Qualifications:
- B.S. in Computer Science, Electrical Engineering, or a related field, or equivalent practical experience
- 2+ years of industry experience working with machine learning models, preferably in computer vision
- Hands-on experience with ML frameworks and libraries such as PyTorch and OpenCV
- Experience contributing to production codebases and pipelines with an emphasis on clean, well-documented, and well-tested code
- Experience designing and tracking ML experiments using tools such as MLflow
- Familiarity with edge deployment or model optimization techniques for inference (e.g., quantization, TensorRT, ONNX Runtime) in latency-sensitive or resource-constrained environments
- Experience with OCR, image classification pipelines, or multi-sensor and multimodal fusion
- Experience working in or alongside industrial, manufacturing, or operations environments where software interacts with physical systems
- Strong cross-functional communication skills and ability to prioritize and execute in a fast-paced, dynamic environment
- A passion for sustainability and making the world a better place!
Working Conditions:
- Factory floor environment; work schedule may vary depending on site operational needs and flexibility is required
- Willingness and ability to travel to Reno, NV as needed
- Additional working conditions to be confirmed with Hiring Manager
The position is full-time. Compensation will be commensurate with experience.
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