Senior Battery Test and Validation Engineer

The role

The Senior Battery Test and Validation Engineer owns and runs the battery characterization program. This person translates performance and compliance questions into test protocols to inform pack qualification decisions for second-life battery systems.

What you will do

• Design test protocols by translating performance and compliance questions into 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
• Perform cycler programming, test monitoring, and failure root-cause analysis
• Drive lab infrastructure and equipment strategy including cycler and chamber purchases and fixture design
• Analyze, interpret, and present test data to technical and non-technical stakeholders
• Innovate on test methodology and execution including smarter test matrix designs and automation scripts
• Collaborate with battery software and data engineering teams to validate software automation

Required qualifications

• 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
• Strong communication skills and ability to collaborate effectively with systems engineers, battery algorithms engineers, compliance teams, and program managers

Nice to have

• experience with AI tools, especially coding assistants like Cursor or Claude Code
• background in EV battery pack qualification or validation programs
• familiarity with battery safety and compliance standards (e.g., UN38.3, UL2580, UL1974)

About the company

Redwood Materials is the largest lithium-ion battery recycler in North America. The company recovers, refines, and redeploys critical minerals from end-of-life batteries back into the supply chain.