Mechanical & Thermal Battery Test Engineer

Job Description

Mechanical & Thermal Battery Test Engineer

Work Location

Cupertino, California (Onsite)

Function

Mechanical & Thermal Battery Test Engineer

Domain

Consumer Electronic Products

Number of Positions

One

Remote Allowed

No

Starting Date

1st November 2026

General Summary

We are seeking a highly motivated Mechanical & Thermal Battery Test Engineer to develop and implement

methodologies for characterizing the mechanical and thermal performance of battery materials, cells,

modules, and battery system components. The successful candidate will play a key role in defining test

strategies, validating battery designs, and generating data-driven insights to support product development and

safety compliance.

Principal Duties and Responsibilities

Develop and validate test methodologies for evaluating the mechanical, thermal, and reliability performance of

battery materials, components, cells, and modules.

Design and establish test protocols, procedures, and validation standards for battery-level performance

assessment.

Plan and execute mechanical abuse, thermal, environmental, and durability testing programs.

Collaborate with internal engineering teams to define test objectives, acceptance criteria, and validation

requirements.

Work with external laboratories and testing partners to address capability gaps and establish new testing

methods.

Ensure compliance with applicable industry standards and safety regulations for battery testing.

Analyze test data, identify failure mechanisms, and provide technical recommendations to make an informed

engineering decision

Prepare comprehensive test reports and present findings to engineering and program teams.

Support root cause investigations and correlation of physical test results with simulation and analytical models.

Knowledge, Skills, and Ability

Required

• MS in Mechanical Engineering, Thermal Engineering, Materials Engineering, or a related discipline with 3+

years of experience, or BS with 5+ years of relevant experience.

• Proven experience in developing mechanical and thermal characterization methodologies for lithium-ion

batteries, battery cells, modules, or packs.

• Strong understanding of battery reliability, safety, and performance testing.
• Strong experience with battery testing standards and best practices (UL, IEC, SAE, ISO, UN38.3, etc.).
• Knowledge of instrumentation, sensors, thermocouples, strain gauges, data acquisition systems, and test

automation.

• Strong analytical and problem-solving skills with experience interpreting test data and failure modes.
• Excellent technical documentation and communication skills.
• Experience working with accredited third-party test laboratories.
• Collaborate with testing technicians to ensure proper execution of test plans
• Knowledge of statistical data analysis and reliability engineering techniques.

Working Conditions

This position primarily works in an engineering office environment, with collaboration across customer

engineering, product, and project teams. Limited travel may be required based on project needs.

Disclaimer

The above is intended to describe the general content of and requirements for the performance of this job. It is

not to be construed as an exhaustive statement of duties, responsibilities, or requirements.

The employer is an equal opportunity employer and strongly supports diversity in the workplace.