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

Apple

$171,600 - $302,200
Aug 18, 2025
San Diego, CA, US
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Apple is looking to innovate new cellular technologies that continually outperform previous iterations by crafting sophisticated groundbreaking embedded firmware for their modem team, aiming to deliver more performance in their products and push the industry boundaries of what wireless systems can do.

Requirements

  • 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.

Responsibilities

  • Specify, design, and implement the physical layer embedded software architecture of an innovative mobile wireless communications system.
  • Design, develop and optimize the 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.

Other

  • Minimum BS and 10 + years of relevant industry experience.
  • Comfortable with all aspects of embedded software development.
  • Thrives in a dynamic multi-functional organization.
  • Not afraid to debate ideas openly.
  • Flexible enough to shift on constantly evolving requirements.