Job Details

eUICC & Baseband Firmware Engineer

San Diego, California, United States

Software and Services

Summary

Posted: Jun 25, 2025

Weekly Hours: 40

Role Number: 200610294

Join Apple's Wireless Software Engineer eSIM team and drive innovation that matters! We have shipped eSIM features across iPhone, iPad, and Cellular watch. We create and seamlessly integrate technologies that enrich people's lives and deliver the absolute best user-experience. If you are passionate about writing code and would be interested in developing eSIM features for Apple's Cellular Products, then we may have the job for you. The Wireless Technologies team is looking for a strong programmer to join our growing eSIM team.

Description

Working as a part of an extraordinary development team, we are searching for a highly motivated software developer. In this position, you will have the opportunity to develop exciting features for Apple's next generation products. You work will involve telephony, SIM, and protocol software. Your contributions will make a clear difference towards future iOS products.

RESPONSIBILITIES
Design, implement, and maintain firmware components for eUICC and secure element subsystems on vendor baseband platforms

INTEGRATE BASEBAND FIRMWARE WITH HOST-SIDE FRAMEWORKS AND IOS INTERFACES
Collaborate with silicon vendors to bring up and validate custom firmware features

Debug and resolve issues across AP-BB-SE interfaces, including ISO7816, SWP, and proprietary channels

Contribute to system-level architecture discussions involving eSIM provisioning, activation, and lifecycle management

Analyze and ensure compliance with GSMA and 3GPP specifications related to eUICC and cellular connectivity

Work cross-functionally with security, protocol stack, and carrier engineering teams to support feature delivery and certification

Minimum Qualifications

• Strong expertise in embedded firmware development

• Hands-on experience with baseband modem platforms (Qualcomm, MTK, etc.)

• Deep understanding of eUICC architecture, SIM file systems, and ISO/ETSI standards (e.g., TS 102 221, TS 102 222)

• Solid debugging skills using tools such as JTAG, QXDM, and protocol-level log analyzers

• Familiarity with cellular technologies (3GPP Rel-13 and above), SIM provisioning workflows, and secure boot environments

• Experience with AP-BB-SE com munition protocols

Preferred Qualifications

• Exposure to OS-level integration (iOS or RTOS environments)

• Understanding of cryptographic protocols used in eUICC lifecycle (PKI, TLS, ASN.1)

• Ability to work independently in a fast-paced, cross-functional engineering environment

• Thrive in a collaborative environment and can clearly communicate with multi-functional teams

• Hard-working and inquisitive, and seek to solve everyday problems in innovative ways

• You are upbeat, adaptable, and results oriented with a positive attitude

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 $135,400 and $250,600, 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.