Job Details

Battery Thermal Engineer

Cupertino, California, United States

Hardware

Summary

Posted: Sep 12, 2025

Role Number: 200620437-0836

Do you have a passion for invention and self-challenge? Do you thrive on pushing the limits of what’s considered feasible? As part of our Battery Engineering group, you’ll help craft creative battery solutions that deliver more energy in smaller spaces than ever before. You’ll work across disciplines to transform improved hardware elements into a single, integrated design. Join us, and help us innovate new battery technologies that continually outperform the previous iterations! By collaborating with other product development groups across Apple, you’ll push the industry boundaries of what batteries can do and improve the product experience for our customers across the world. The Battery Product Development team at Apple produces high energy and highly reliable embedded battery systems for all product teams. Tightly integrated with Product Development, Operations, Industrial Design and Reliability Testing groups, the Battery Product Development team owns battery module development from initial system architecture through ramp.

Description

As a member of the Battery Modeling team, you will be responsible for Thermal modeling for all products. You will be fully integrated with the Product Design team from the earliest stages, analyzing and informing the design of cutting-edge products. You will also work with cross-functional teams within Apple to provide design guidance in terms of thermal impact of the product features.

Responsibilities

• Develop of state of art Thermal as well as multi-physics finite Element (FE) models of cell, pack, and BMS sub-systems

• Provide deign and trade-off guidance to the PD teams through early stage simulations, particularly in cases such as fast charging and high power functions

• Generate models/capability to convert power map into thermal outputs

• Perform advanced Thermal/CFD simulations to evaluate and enhance understanding of the various boundary conditions at the cell, pack, BMS sub-systems around battery packs well as in system

• Work with test and reliability labs, to develop physical test methods, to gather necessary data for results validation

• Work with system teams, to collaborate on developing detailed sub-models to be used in assembly level simulations

• Develop optimized workflows and/or reusable templates for regularly required thermal simulations.

• Work with CAE vendors to drive the functionality improvements to better serve the CAE needs of the group

• Explore new analysis types and solutions, including topological optimization

• Extract Reduced Order Models (ROM) from CFD simulations to speed up the exploratory studies

Minimum Qualifications

• BS degree in Mechanical or Electrical Engineering

• Experience with CFD and thermal modeling

Preferred Qualifications

• 3 years relevant industry experience

• Master’s degree, PhD or equivalent job-related experience in Mechanical Engineering, Electrical Engineering or equivalent

• Familiarity with Ansys HFSS 3D Layout and SIWave.

• Experience in transient thermal simulations of assemblies.

• Familiarity with NX, Comsol, Cadence.

• Experience in electronics cooling.

• Familiarity with multi-physics coupled modeling, integrating mechanical, thermal and electrochemical behaviors.

• Python or other scripting languages.

• Experience in Allegro and electronics layout design

• Familiarity with li-ion cells and battery packs

• Experience in defining and leading technical development roadmap

• Experience in managing project teams

Pay & Benefits

At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $147,400 and $272,100, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation.Learn more about Apple Benefits. (https://www.apple.com/careers/us/benefits.html)

Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.Learn more about your EEO rights as an applicant (https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf) .

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.Learn more about your EEO rights as an applicant (https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf) .

Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation.

Apple participates in the E-Verify program in certain locations as required by law.Learn more about the E-Verify program (https://www.apple.com/jobs/pdf/EverifyPosterEnglish.pdf) .

Apple is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. Reasonable Accommodation and Drug Free Workplace policy Learn more .

Apple is a drug-free workplace. Reasonable Accommodation and Drug Free Workplace policy Learn more .

Apple will consider for employment all qualified applicants with criminal histories in a manner consistent with applicable law. If you’re applying for a position in San Francisco, review the San Francisco Fair Chance Ordinance guidelines applicable in your area.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.