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

Apple Inc.; Sunnyvale (CA); On-site; USD 184,700 - 324,800; Full time

Benefits offered by this job

Employee stock plans

Stock units and ESPP eligibility

Tuition reimbursement

Medical and dental coverage

Relocation assistance

Employee discounts

Job summary

Apple is seeking a senior engineer to specify, design and implement PHY/Layer1 Control Software for mobile wireless systems. You will optimize scheduling, latency, and energy usage while contributing to pre‑silicon emulation and verification efforts on high‑end cellular platforms.

The role requires 10–15+ years in real‑time embedded cellular PHY L1, strong C/C++/RTOS skills, and a deep understanding of hardware interfaces. Location is Sunnyvale, CA with a comprehensive benefits package.

Qualifications

• 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++, RTOS and concurrent programming.

Responsibilities

• 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.

Skills

C/C++ programming

RTOS

Concurrent programming

Real-time embedded systems

Cellular PHY L1

Education

Bachelor's or Master’s degree in CS/CE/EE

Tools

System simulators

Spectrum analyzers

Oscilloscopes

JTAG debuggers

Job description

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.

Core Responsibilities

• 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.

Preferred Qualifications

• 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.

Minimum Qualifications

• 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.

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 $184,700 and $324,800, 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

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