Battery Cell Test Engineer, In House Cell Engineering

Job Description

Tesla is seeking a dedicated Cell Test Engineer with a passion for data to join our in-house cell testing team in Austin, TX. The role involves testing and qualifying large-format 4680 cells for electrochemical performance and long-term durability, collaborating closely with various teams to enhance overall product performance.

Requirements

• Degree or Equivalent Experience in Chemical Engineering, Mechanical Engineering, Materials Science, Physics, Data Science, or a related field
• Hands-on experience with lithium-ion cell testing, electrochemical characterization, or equivalent test engineering
• Working knowledge of electrochemical test systems
• Proficiency in coding and data analysis using MATLAB, Python, and/or similar tools
• Experience executing reliability and validation tests to characterize cell performance
• Understanding of lithium-ion cell behavior, safety, handling practices, and failure mechanisms
• Excellent communication skills and a collaborative mindset
• Comfortable working in a high-intensity, fast-moving environment

Responsibilities

• Drive end-to-end planning, execution, and analysis of high-throughput cell testing operations
• Monitor test data to detect abnormal performance trends and test deviations
• Collaborate cross-functionally to interpret results and identify failure mechanisms
• Develop and apply statistical and physics-based models to evaluate lithium-ion battery performance
• Analyze test data to refine reliability models and improve field performance forecasts
• Work with cross-functional teams to assess risks and lead root-cause investigations
• Produce clear, data-driven visualizations and author technical presentations

Benefits

• Employees at Tesla are often offered day-one coverage with multiple medical options (some at $0 paycheck cost), dental/vision, company HSA contributions, a 401(k) match, and equity programs. Most roles also include paid time off and holidays, family-building support, employee assistance, commuter and childcare benefits, and access to discounts and wellness programs.