As an RF Software Engineer on the Cellular FW team, you will play a crucial role in developing embedded 5G/4G/multimode cellular firmware within a silicon design group. This position focuses on crafting innovative cellular SoCs and requires collaboration across various product development groups at Apple. You will be responsible for pushing the boundaries of wireless systems and enhancing the product experience for customers worldwide. The role demands a strong understanding of mobile communications and embedded software development.

• Minimum BS with 10 years of relevant industry experience
• Solid understanding of mobile communications in 4G/5G 3GPP protocols and radio architecture and interfaces
• Proven knowledge of RF transceiver and RF front-end component's control for 4G/5G radio
• Strong understanding of RF calibrations for compensating RF impairments
• Deep understanding of software engineering principles and core computer science fundamentals
• Excellent in embedded C/C++ programming, and working experience with compilers, build and source code control tools
• Experience with using RF test equipment for RF validation and debugging
• Proficiency with debugging in embedded software systems
• Understanding of design principles to meet tight real-time deadlines is a plus
• Familiarity with other radio technologies such as WiFi/BT
• Experience with live network cellular device issue triage
• Familiarity with 3GPP regulatory test cases
• Experience with the production of cellular devices

• Develop and productize innovative cellular firmware for 5G/4G/multimode systems
• Collaborate with cross-functional teams to integrate improved hardware elements into designs
• Engage in open debates to refine ideas and approaches within the team
• Adapt to constantly evolving requirements in the development process
• Utilize RF test equipment for validation and debugging of RF systems
• Implement RF calibrations to address RF impairments in products

• 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.