Would you like to join Apple’s fast growing cellular wireless team? Our team is responsible for integrating RF sub-systems into modem applications from very first prototypes until mass production devices covering bring-up, validation, debugging and further quality improvement in strong collaboration with Concept, Firmware, Design and various test departments. In order to expand our team’s validation capability towards future Apple products, we are looking for an experienced, passionate RF engineer with good programming skills. The world-class cellular RF sub-systems developed in our labs are enabling Apple mobile devices in un-compromised cellular network connectivity at lowest possible battery drain, enabling long hours of enjoyable customer experience. Thus join us and leverage your passion for RF and excellence, bringing your education and experience to the world's most innovative company!
Description
We are searching for an experienced Cellular RF Systems Engineer. In this role you have the unique opportunity to be at the forefront of market-leading, cutting-edge cellular transceivers.
Responsibilities
Bring-up, functional verification, performance optimization and debugging of RF subsystem/features to reach best in class modem applications.
Develop / enhance automated test scripts to guarantee functionality and performance of RF sub-systems using Virtual Prototyping as well as existing Hardware.
Assess key performance parameters according to 3GPP specifications, debug and validate RF parameters on system level to meet or even exceed 3GPP compliance in mass production (2G/3G/4G/5G) in SC / CA for FDD / TDD mode to reach highest efficiency values.
Analyse RF content of field test logs and derive RF related issues down to specific field of sub-system (Receiver / Transmitter / Power Management / System Engineering / Firmware / Development / Test equipment).
Operate RF measurement equipment and radio communication tester for cellular standards in non-signaling using RF sub-systems and in signalling mode on modem level.
Coordinate debugging effort as multi-functional lead across disciplines using assigned experts (System Engineering, Firmware Engineering, Component Verification, Tooling Team, Test campaign owner).
Implement and improve Quality-gate / regression testing for RF software releases towards modem.
Contribute to the definition of RF features, their feasibility through early measurements, and facilitate their implementation
Contribute to release notes satisfying industry state of the art standards.
Prepare and present status \& progress tracking.
Train partner teams on RF subsystem features, how to debug and optimise.
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Minimum Qualifications
Deep understanding of RF/Layer1 systems \& RF/Layer1 measurement techniques \& operating an array of RF instruments with focus on cellular wireless test platforms.
Proven experience in characterising and debugging RF cellular systems and components, including root cause analysis.
Strong programming skills with Python for test script generation in a HW/SW environment.
Mastery of reviewing and interpreting 3GPP specifications for cellular TRX and modem applications.
Expert in creating test automation scripts to run in lab and/or regression environment.
Proficiency in English language is required.
Preferred Qualifications
Familiar with RF fundamentals \& RF measurement techniques.
Debugging experience in transceiver/modem systems.
Programming skills in Python and familiar with versioning tooling.
Good knowledge of cellular 3GPP (2G/3G/4G/5G) standards with focus on RF aspects.
Fundamentals in AI/ML.
Master´s degree or PhD in Electrical/Hardware Engineering or Computer Science with RF background, or proven industrial experience/degree equivalent.
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.
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