Embedded 5G/4G Cellular RF SW/FW Engineer

Job Description

Join Apple's world-class modem team to craft sophisticated groundbreaking embedded firmware for innovative cellular technologies.

Requirements

• Minimum BS and 10 + years of relevant industry experience
• Intimate Knowledge of communication theory, Wireless standards, Radio architecture, and Interfaces
• Solid Work experience in developing and debugging on real-time embedded systems
• Knowledge of mobile communications, 4G/5G 3GPP protocols, and PHY layer radio aspects
• Solid understanding of Tx Power Control, AGC, physical channel handling, various RF impediments and mitigation techniques
• Working experience in solving functional and performance issues in Physical later and RF
• Deep understanding of software engineering principles, and core computer science fundamentals
• Excellent command of C and C++, and working experience with compilers, build and source code control tools
• Solid understanding of computer architecture with a particular emphasis on the HW/SW interfaces of wireless communication systems
• Proficiency with debugging in embedded software systems. Familiarity with JTAG
• Good understanding of RF Validation and RF Calibration procedures

Responsibilities

• Specify, design, and implement the physical layer embedded software architecture of an innovative mobile wireless communications system
• Design, develop, and optimize Cellular Processing algorithms pertaining to Baseband and RF components in a cellular system
• Implement RF Control software in the baseband modem with precise timing requirements
• Work with Baseband & RF systems and hardware designers to define hardware function and software computing requirements
• Work with systems and IC designers to optimize power optimization for all RF circuitry in the cellular system
• Work with multi-functional teams to manage dependencies while driving the key Radio features

Benefits

• Employees at Apple are often offered comprehensive benefits that support physical and mental well-being—flexible medical plans, confidential counseling, onsite wellness centers at major campuses, and resources for fitness and daily life. Families typically receive fertility support, paid parental leave with gradual return, caregiving leave, and dependent-care guidance, while financial perks commonly include stock grants (with purchase discounts), 401(k) matching, and income-protection coverage. Employees also see robust time off, Apple University learning and tuition reimbursement, donation matching and paid volunteer hours, and deep product and partner discounts.