Cellular RF Transmitter Systems Engineer

At Apple, we work every single day to craft products that enrich people's lives. The people here at Apple don't just create products - they create the kind of wonder that revolutionizes entire industries. We invite you to join our dynamic group, for the unique and rewarding opportunity to contribute to upcoming products that will delight and inspire millions of Apple's customers every day.

Are you interested in doing work that challenges you, expands your thinking, provides innovative solutions for future problems while driving your growth as recognized technical leader in the cellular industry? Apples RF Transmitter Systems Engineering team is looking for a passionate, talented individual who is eager to break technical boundaries and to change the way of doing things. Our elite team is shaping the mobile market with disruptive RF innovations while taking full responsibility for execution and commitments to schedule and quality.

Join our team of leading experts in cellular RF industry and deliver differentiating transmit architectures and solutions for Apple's wireless products that create amazing value for our customers! In this role, you will be part of an industrial-leading RF Transmitter Systems Engineering team. You will work closely with other architecture and systems engineering teams, RF design teams and SW teams to assess, specify and drive transmitter concepts with focus on leading-edge performance and uncompromised quality as baseline for differentiating products. Your daily work includes the following tasksTranslate cellular system-level and performance requirements into requirements for the TX line-up and features of RF front-end components, transceiver, and system firmware. Understand and specify RF algorithms (e.g. power control, calibration) and define the RF control infrastructure, including compute resources, interfaces, memory and timing constraints. Lead hardware/software partitioning of RF algorithms, ensuring optimal trade-offs between flexibility, latency, area and power. Develop models and run simulations (e.g., MATLAB, Python, C) for functional verification, performance analysis, and measurement correlation. Identify and analyze critical requirements and provide assessments of system performance impact, timelines and risks. Drive the alignment of requirements, design targets and trade-offs with other teams such as hardware design and software engineering.BS and a minimum of 10 years relevant industry experience 5+ years of relevant experience in RF, including cellular transmit architectures, or PhD degree with previous work on cellular topics. Knowledge of cellular radio/3GPP standards (GSM, UMTS, LTE, LTE-A, 5G NR), including RF aspects as well as system use cases and TX waveforms. Familiarity with RF systems, front-end (power amplifier, filters, switches, power management), and transceiver architecture, including lineup design and trade-offs (e.g. gain, linearity, noise, power, thermal). Experience with hardware and software co-design and clear understanding of trade-offs between analog and digital hardware and firmware implementations. Strong analytical skills, proactive user of AI tools, and ability to collaborate and communicate across multicultural, global teams.Prefer a Ph.D. in Electrical Engineering or equivalent. Knowledge of how to translate top-level RF requirements into specifications for RF front-end and transceiver architecture and building blocks Initial expertise in RF transmitter system-level concepts, control and data translation into modulations, and control procedures like power control, digital predistortion, and envelope tracking. RF front-end and RFIC system modeling and simulation. Expertise in RF front-end architectures, technologies, and design. Knowledge of digital signal processing and mixed-signal circuit design. Understanding of SoC integration constraints and multi-chip RF architectures.