Tesla

Makes electric cars, robotaxis and grid batteries

Cell Test Engineer - Cell Qualification

Hardware Validation & TestingUpdated on Nov 9

Full-timeSan Diego, CA, USANo salary listedIn-person

About the Job

Requirements

A degree in Electrical, Mechanical, Chemical, or Materials Science, a related engineering field, or equivalent experience.
Experience in a test, validation, or product engineering role, preferably involving batteries, electronics, or similar hardware.
Working knowledge of cell electrical fundamentals, including voltage, current, capacity, and impedance, and hands-on use of cyclers, data acquisition systems, multimeters, and environmental chambers.
Ability to write structured test plans and interpret raw data using Excel and/or Python, MATLAB, or similar tools.
Hands-on fixture, instrumentation, or equipment troubleshooting experience.
High awareness of electrical, chemical, and thermal safety hazards and laboratory best practices.
Strong written and verbal communication, ownership as a self-starter, and proven collaboration with cross-functional engineering teams.

Responsibilities

Design and execute electrical, mechanical, and thermal characterization and performance tests to quantify cell behavior, safety margins, and design tradeoffs.
Translate engineering requirements into test plans covering sample size, conditions, instrumentation, pass/fail criteria, and data deliverables.
Own test execution quality, including scheduling, logistics, fixturing, setup, and data integrity from start of test through report-out.
Analyze test data, identify trends and anomalies, and provide clear recommendations to Cell Engineers.
Improve test capability and throughput through method development, fixture design, equipment selection, automation, and process changes.
Partner with technicians and engineers to keep execution on SLA without sacrificing data quality.
Lead troubleshooting of test equipment, fixtures, and anomalous results, and drive root-cause and corrective action.
Support process and equipment validation, calibration strategy, and laboratory readiness.
Uphold Tesla safety standards and promptly escalate risks, equipment issues, or data-quality concerns.

Desired Qualifications

Direct experience with lithium-ion cell testing is highly desired.
Experience with Neware, Arbin, BioLogic, or similar cyclers is a plus.
Fixture design using CAD, scripting/automation, or DOE/statistical analysis is a plus.

Category	Engineering & Information Technology
Location	San Diego, California
Requisition ID	285310
Type	Full-time

Job Description

<p>Tesla is seeking a Cell Test Engineer for the Cell Engineering team to be part of a world-class team responsible for evaluating prismatic cell performance during early development across vehicle and energy storage programs. As a Cell Test Engineer, you own test methods, data quality, and execution so Cell Engineering can evaluate design options quickly and with high confidence. This includes turning test intent into robust plans, fixtures, and workflows; executing electrical, mechanical, and thermal testing; analyzing results; and closing the loop with design teams. Cell Test Engineers use test data to validate design changes, improve lab capability, and protect execution quality in a fast-paced development environment.</p>

Job Responsibilities

Design and execute electrical, mechanical, and thermal characterization and performance tests to quantify cell behavior, safety margins, and design tradeoffs
Translate engineering requirements into test plans covering sample size, conditions, instrumentation, pass/fail criteria, and data deliverables
Own test execution quality, including scheduling, logistics, fixturing, setup, and data integrity from start of test through report-out
Analyze test data, identify trends and anomalies, and provide clear recommendations to Cell Engineers
Improve test capability and throughput through method development, fixture design, equipment selection, automation, and process changes
Partner with technicians and engineers to keep execution on SLA without sacrificing data quality
Lead troubleshooting of test equipment, fixtures, and anomalous results, and drive root-cause and corrective action
Support process and equipment validation, calibration strategy, and lab readiness
Uphold Tesla safety standards and escalate risks, equipment issues, or data-quality concerns promptly

Job Requirements

Degree in Electrical, Mechanical, Chemical, Materials Science, related engineering field, or equivalent in experience
Experience in a test, validation, or product engineering role, preferably batteries, electronics, or similar hardware
Working knowledge of cell electrical fundamentals (voltage, current, capacity, impedance) and hands-on use of cyclers, DAQ, multimeters, and environmental chambers
Ability to write structured test plans and turn raw data into conclusions using Excel and/or Python, MATLAB, or similar
Hands-on fixture, instrumentation, or equipment troubleshooting experience
High awareness of electrical, chemical, and thermal safety hazards and lab best practices
Direct experience with lithium-ion cell testing is highly desired
Experience with Neware, Arbin, BioLogic, or similar cyclers is a plus
Fixture design (CAD), scripting/automation, or DOE / statistical analysis is a plus
Strong written and verbal communication, ownership as a self-starter, and proven collaboration with cross-functional engineering teams

About the Company

Tesla

Makes electric cars, robotaxis and grid batteries

Tesla makes electric cars and batteries that store power for homes and utilities, and it develops self-driving software and humanoid robots. In 2023, its Model Y became the first electric vehicle to rank as the world's best-selling car. Buyers order the Model 3 sedan, Model Y SUV, or Cybertruck pickup directly from Tesla instead of through dealers, and they charge on its Supercharger fast-charging network. It also sells Megapack and Powerwall batteries, runs a robotaxi service, and charges drivers a monthly fee for self-driving software that still needs their supervision. Tesla was founded in 2003, with Elon Musk as its lead early investor and a recognized co-founder, and it is based in Austin, Texas.

Company size: 10,001+
Company stage: IPO
Headquarters: Austin, TX
Founded: 2003

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