APPLE INC has the following available in San Diego, California. Specify, design, and implement the RF firmware architecture of a state-of-the-art mobile wireless communications system. Design, develop, and optimize the RF processing algorithms for transceivers, RF front end, antenna tuners, and other RF components in a cellular system. Implement RF device drivers and control software for RF transceivers and front-end components with precise timing requirements. Work with RF silicon design. Work with systems and IC designers to optimize power optimization for all RF circuitry in the cellular system. Work with cross-functional teams to manage dependencies while driving the key Radio features. Perform verification of implemented firmware and investigate critical RF issues in a cross-functional HW/SW working environment. Investigate and debug standalone RF and cross-functional Cellular and RF issues. Investigate, design, and implement FW architecture to be able to meet the timing specifications needed between Cellular and RF. 40 hours/week. At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $135,400 - $204,000/yr and your base pay will depend on your skills, qualifications, experience, and location.