Senior Battery Test and Validation Engineer

About Redwood Materials

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. This role sits at the center of understanding how second-life battery systems for data centers behave across varied cell chemistries, form factors, and usage histories, generating the foundational data that feeds site operating parameters, battery models, and algorithms. This is an on-site role.

Essential Duties and Responsibilities:

• Design test protocols by translating high-level performance and compliance questions into concrete test matrices, channel allocations, and timelines
• Execute and manage concurrent test and screening campaigns across multiple battery types at the cell, module, and pack level, including cycler programming, test monitoring, and failure root-cause analysis
• Drive lab infrastructure and equipment strategy, evaluating and recommending cycler and chamber purchases, fixture design, and channel capacity planning as the program scales
• Analyze, interpret, and present test data to both technical and non-technical stakeholders, turning raw results into clear engineering conclusions that inform qualification decisions and program risk assessment
• Innovate on test methodology and execution to extract maximum insight from limited channels and time, including smarter test matrix designs, advanced cycler programming, and developing automation scripts
• Collaborate with the battery software and data engineering team to define, prioritize, and validate software automation of characterization processes

Skills, Knowledge, and Abilities:

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