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Battery Cell Test Engineer, In House Cell Engineering

Tesla

10/30/2025

Austin, TX

Full-time


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.
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