Senior Cellular Layer-Control Software Development Engineer, Wireless Technologies & Ecosystems

Senior Cellular Layer-1 Control Software Development Engineer, Wireless Technologies & Ecosystems

Sunnyvale, California, United States Software and Services

Join our Wireless Technologies and Ecosystems (WTE) team and drive innovation that matters! We build and seamlessly integrate technologies that enrich people’s lives and deliver the best user‑experience. We’re a passionate and critical team that designs, develops and integrates software for cellular chipsets in Apple products. You will join a hands‑on development team that nurtures creativity and generates novel solutions to deliver engineering perfection.

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 a world‑class cellular team, you’ll craft sophisticated groundbreaking embedded software that delivers more performance in our products than ever before. Join us, and you’ll help us innovate new cellular technologies that continually outperform the previous iterations. By collaborating with other product development groups across Apple, you’ll push the industry boundaries, redefine what wireless systems can do and improve the product experience for our customers across the world.

Apple’s Cellular Software team is seeking talented, highly motivated and disciplined engineers to work across layers on groundbreaking cellular technologies. The position involves identifying and/or developing core cellular technologies that solve everyday problems for customers using iPhone, iPad, Watch and other wireless product lines. We are passionate about keeping our users connected 24/7 wherever they go. This team takes pride in not just coming up with proven software designs but also in disrupting traditional models of the cellular ecosystem.

We do whatever it takes to bring user experience to the next level.

• Specify, design, and implement PHY/Layer1 Control Software/Firmware of a state‑of‑the‑art mobile wireless communications system.
• Implement key scheduling, control processing in tight timeline, latency, and energy constraints.
• Assist in the development of pre‑silicon emulation systems/virtual platforms and use them for pre‑silicon Layer1 Control SW design and verification.
• Evaluate and implement leading edge tools for build, formal verification, and test.
• Define methodologies and standards.

• Bachelors and/or Masters degree in Computer Science, Computer Engineering, Electrical Engineering, or related field.
• 10‑15+ years of relevant industry experience.
• In‑depth hands‑on experience with real‑time embedded cellular 4G/5G/6G PHY L1.
• Strong understanding of software engineering principles using C and/or C++, Real Time Operating Systems (RTOS) and concurrent programming.

• Deep understanding of cellular uplink procedure – RACH, Scheduling Request, SRS, CSI, Antenna selection algorithms.
• Working knowledge of computer architecture with particular emphasis on the HW/SW interfaces of high‑speed communication subsystems.
• Experience with silicon prototyping, emulation systems, and virtual platforms.
• Experience in SW verification and HW validation utilizing scripting and/or automation frameworks with strong experience debugging embedded software systems using system simulators, spectrum analyzers, oscilloscopes, JTAG debuggers.

At Apple, base pay for this role ranges from $181,100 to $318,400 and depends on 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, discounted products and free services, reimbursement for certain educational expenses, discretionary bonuses or commission payments, and relocation assistance.

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.

At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong. Learn about accessibility in Apple’s workplace and reasonable accommodations for job applicants.