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Senior Battery Test and Validation Engineer

Redwood Materials · San Francisco, California, United States · On-site

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About Redwood Materials

Redwood Materials is building the U.S. stockpile of critical materials and deploying large-scale energy storage systems that power data centers and the nation’s grid.

About the role

The Senior Battery Test and Validation Engineer owns and runs Redwood's battery characterization program and serves as the technical authority on what gets tested, how, and why. This is a fully on-site role at 100 Hooper. The role translates open-ended performance, compliance, and system-level questions into test protocols and delivers data-driven answers that inform pack qualification decisions. Found on 1752vc Careers, the job board for startup and VC roles.

What they're looking for

  • BS or MS in Engineering (Mechanical, Chemical, Materials, Electrical), or a related field
  • Minimum 3 years of experience
  • Strong intuition for lithium-ion cell behavior, operating limits, cell-level failure modes, and degradation mechanisms
  • Hands-on experience with electrochemical characterization techniques such as HPPC, EIS, dQ/dV analysis, and cycle life testing
  • Proficiency in data analysis and scripting with Python or MATLAB
  • Experience with battery cycler platforms (e.g., Arbin, Maccor, Neware) including test programming and troubleshooting
More about this role

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.

The Senior Battery Test and Validation Engineer owns and runs Redwood's battery characterization program and serves as the technical authority on what gets tested, how, and why. This is a fully on-site role at 100 Hooper. The role translates open-ended performance, compliance, and system-level questions into test...

Read the full posting on Redwood Materials's site ↗

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