5G/4G Physical Layer Firmware Verification and Integration Engineer
Apple
San Diego, CA, USA
USD 139,500-258,100 / year + Equity
Posted on Dec 5, 2025
Apple is where individual imaginations gather together, committing to the values that lead to great work. Every new product we build, service we create, or Apple Store experience we deliver is the result of us making each other’s ideas stronger. That happens because every one of us shares a belief that we can make something wonderful and share it with the world, changing lives for the better. It’s the diversity of our people and their thinking that inspires the innovation that runs through everything we do. When we bring everybody in, we can do the best work of our lives. Here, you’ll do more than join something — you’ll add something.
Join Apple's innovative team where you will contribute to the development and verification of cutting-edge wireless technologies. We are seeking a highly skilled Firmware Verification and Integration Engineer to play a critical role in ensuring the quality and performance of our 4G/5G firmware. You will be a key member of a cross-functional team, collaborating with component validation, integration, protocol test, firmware development, and system engineering teams.
- Designing and developing robust validation frameworks and comprehensive test cases for 4G/5G firmware.
- Implementing and maintaining test automation for 4G/5G User Equipment (UEs), test simulators, and carrier OTA drops.
- Verifying critical protocol, signal processing, and numerical algorithms, ensuring performance within stringent time, latency, and energy budgets.
- Debugging and analyzing issues identified during testing, working closely with firmware development and systems design teams to drive resolution.
- Evaluating and implementing advanced tools for build, formal verification, and testing processes.
- BS and a minimum of 3 years relevant industry experience.
- Expertise in 4G/5G 3GPP physical layer and protocol stack procedures and configurations.
- Demonstrated experience in Modem system test plan and feature release planning for 4G/5G functional and performance scenarios.
- Strong understanding of 4G/5G signaling and physical layer Test Equipments, including their automation interfaces.
- Excellent analytical and debugging skills, with the ability to diagnose complex issues and collaborate effectively with development/design teams for resolution.
- Proficiency with source code control tools.
- Ability to quickly adapt and learn new architectures and frameworks.
- Familiarity with AI/ML tools and techniques for test optimization, data analysis, or complex system verification.
- Master's degree in Electrical Engineering, Computer Science, or a related field.
- Experience with network emulators, silicon prototyping, emulation systems, and virtual platforms.
- Proficiency in automation tools and scripting languages (e.g., Python, C/C++, Java).
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.