Embedded 5G/4G Cellular RF Software/Firmware Engineer

San Diego, California, United States


Weekly Hours: 40
Role Number:200452157
Do you have a passion for invention and self-challenge? Do you thrive on pushing the limits of what’s considered feasible. As part of a world class modem team, you’ll craft sophisticated groundbreaking embedded firmware that deliver more performance in our products than ever before. You’ll work across fields to transform improved hardware elements into a single, integrated design. Join us, and you’ll help us innovate new cellular technologies that continually outperform the previous iterations! By collaborating with other product development groups across Apple, you’ll push the industry boundaries of what wireless systems can do and improve the product experience for our customers across the world. As a Cellular RF Software/Firmware Engineer, you will be at the center of the embedded 5G/4G/multimode cellular firmware effort within a silicon design group responsible for designing and productizing powerful cellular SoCs! This position requires someone comfortable will all aspects of embedded software development, that thrives in a dynamic multi-functional organization, is not afraid to debate ideas openly, and is flexible enough to shift on constantly evolving requirements.


- Specify, design, and implement the RF firmware architecture of an innovative mobile wireless communications system. - Design, develop and optimize the RF processing algorithms pertaining to transceiver, RF front end, antenna tuners and other RF components in a cellular system. - Implement RF device drivers and control software for RF transceivers and RF front end components with precise timing requirements. - Work with RF silicon designers to define RF transceiver architecture and supporting 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.

Minimum Qualifications

Key Qualifications

  • Minimum BS and 10 + years of relevant industry experience.
  • Strong knowledge of mobile communications in 4G/5G 3GPP protocols and PHY layer radio aspects.
  • Knowledge of communication theory, Wireless standards, Radio architecture and Interfaces.
  • In-depth experience with control of RF transceiver and RF front end components for 4G/5G data path processing.
  • Understanding of RF calibrations for gain error and techniques for compensating RF impairments.
  • Understanding of design principles to meet tight real time deadlines a plus.
  • 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 particular emphasis on the HW/SW interfaces of wireless communication systems.
  • Experience with using RF Test equipment for RF validation and debugging.
  • Proficiency with debugging in embedded software systems. Familiarity with JTAG and ETM Trace tools.
  • Experience in providing technical leadership for a team size of 4-5, managing schedule and assignments for team members.
  • Experience in delivering e2e features with some cross-functional impact and managing dependencies.

Preferred Qualifications

Education & Experience

Minimum BS and 10 + years of relevant industry experience

Additional Requirements

  • Apple is an equal opportunity employer that is committed to inclusion and diversity. We also take affirmative action to offer employment and advancement opportunities to all applicants, including minorities, women, protected veterans, and individuals with disabilities. Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation or that of other applicants.
  • We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

Pay & Benefits

  • Apple is an equal opportunity employer that is committed to inclusion and diversity. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.