As a Cellular Firmware Engineer, you will be part of a world-class modem team focused on developing and productizing state-of-the-art cellular SoCs. Your role will involve diagnosing and debugging advanced embedded firmware for 5G/4G/multimode cellular technologies. You will collaborate with various product development groups to innovate and push the boundaries of wireless systems. This position requires a strong understanding of cellular technology and the ability to adapt to evolving requirements.

• BS degree and a minimum of 3 years of relevant industry experience is required.
• Strong understanding of 5G and 4G 3GPP standards.
• Competent knowledge of Layer One and Physical Layer control.
• Proficiency in embedded programming languages such as C and C++.
• Proficiency in scripting languages like Python and JavaScript.
• Experience with embedded real-time software system bring-up, debug, and test.
• Advanced degree in electrical engineering, computer science, computer engineering, or data science with 5+ years of relevant experience in the wireless communications industry is preferred.
• Experience in AI/ML technology and familiarity with LLM, RAG, Transformer, Claude, and other AI/ML techniques.

• Participate in silicon bring-up and feature bring-up.
• Triage a multi-mode L1/PHY firmware architecture.
• Troubleshoot and debug L1/PHY modem firmware issues utilizing AI and automation techniques.
• Develop triaging automation for firmware.
• Optimize L1 and PHY firmware testability and debug capability.
• Run data mining, extraction, and formatting to monitor firmware health and debug efficiency.

• 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.