Sr. Cell Engineer, Global Technical Quality

About the role

We are seeking a detail-oriented Cell Engineer (or Scientist) to join our Global Technical Quality team. The ideal candidate will be responsible for investigating, analyzing, and resolving electrical, mechanical, and chemical issues in lithium-ion battery cells during development, production, and field returns. You will play a critical role in improving cell quality, reliability, safety, and performance by leading defect designations, designing test protocols, and collaborating cross-functionally with R&D, manufacturing, production quality, and reliability teams.

Responsibilities

• Provide technical guidance to Cell Manufacturing in relation to evaluating cell product quality risks
• Develop and execute test plans to probe cell-level failure modes including internal shorts, capacity fade, swelling, thermal runaway, and electrolyte degradation
• Fabricate coin and low-capacity pouch cells, within glovebox environment as well as production-relevant production line fault injections
• Conduct in-depth analysis on battery cells using advanced diagnostic tools (e.g., SEM, CT, EIS, XRF, etc)
• Perform electrical and electrochemical characterization (cycling, impedance spectroscopy, charge/discharge profiling) to identify performance anomalies
• Document findings with clear, actionable reports, including root cause analysis, failure mechanisms, and mitigation recommendations
• Collaborate with materials scientists, process engineers, and manufacturing teams to implement corrective actions and prevent recurrence
• Support product and cell test validation programs

Requirements

• Degree in Chemistry, Material Science, Chemical Engineering or equivalent experience
• 5+ years of hands-on experience in battery cell design, testing, failure analysis, or R&D
• Proficiency with battery testing equipment (e.g., Arbin, Neware, Bio-Logic, etc)
• Proficiency with data analysis tools (Python, MATLAB, Excel)
• Understanding of lithium-ion battery chemistry and failure mechanisms
• Understanding of non-destructive and destructive analytical techniques (CT, XRF, SEM-EDS, DSC, TGA, FTIR, etc.)
• Excellent problem-solving, communication, and documentation skills
• Ability to work in a fast-paced, cross-functional environment with attention to detail and safety

Benefits

• Medical plans – plan options with $0 payroll deduction
• Family-building, fertility, adoption and surrogacy benefits
• Dental (including orthodontic coverage) and vision plans, both have options with a $0 paycheck contribution
• Company Paid Health Savings Accounts (HSA) contribution when enrolled in the High-Deductible medical plan with HSA
• Healthcare and Dependent Care Flexible Spending Accounts (FSA)
• 401(k) with employer match, Employee Stock Purchase Plans, and other financial benefits
• Company paid Basic Life, AD&D
• Short-term and long-term disability insurance (90 day waiting period)
• Employee Assistance Program
• Sick and Vacation time (Flex time for salary positions, Accrued hours for Hourly positions), and Paid Holidays
• Back-up childcare and parenting support resources
• Voluntary benefits to include: critical illness, hospital indemnity, accident insurance, theft & legal services, and pet insurance
• Weight Loss and Tobacco Cessation Programs
• Tesla Babies program
• Commuter benefits
• Employee discounts and perks program

Pay

Expected Compensation $91,600 - $195,600/annual salary + cash and stock awards + benefits. Pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience.