System Test Engineer, 5G6G Wireless Interoperability Wireless Technologies and Ecosystems

At Apple we push the boundaries of whats possible and that starts with the engineers who test it. As a System Test Engineer on our Wireless Technologies team youll play a pivotal role in ensuring Apple devices deliver seamless world-class 5G and 6G connectivity across every network every carrier and every corner of the globe. If you thrive at the intersection of deep protocol knowledge and cutting-edge innovation this is where your expertise will shape products used by hundreds of millions of people.n

In this role you will be at the forefront of validating next-generation wireless connectivity on Apple products through rigorous interoperability testing across 5G and emerging 6G standards. You will collaborate with cross-functional teams spanning silicon software and RF engineering to design and execute system-level test strategies that span physical layer performance to end-to-end protocol behavior. Working with global carrier partners and industry standards youll leverage AI/ML-driven tooling and scalable automation frameworks to uncover issues early and drive quality to the highest bar all in pursuit of delivering the best possible wireless experience to Apple customers worldwide.n

Design develop and execute system-level interoperability test plans for 5G NR (Sub-6 and FR2/mmWave) and emerging 6G technologies across commercial and lab network environmentsnAnalyze 3GPP protocol stacks and physical layer behavior to identify failure modes and drive root cause analysis on complex wireless issuesnBuild and maintain automated test frameworks and AI/ML-assisted diagnostic tools to accelerate test coverage and reduce manual effortnPartner with carrier and chipset partners to define interoperability test scenarios and reproduce field-reported issues in a controlled lab settingnCollaborate with hardware software and RF teams to validate new device features against evolving 3GPP specificationsnTriage document and track defects with clear technical detail working closely with engineering teams to drive issues to resolutionnContribute to the development of internal test infrastructure signal analysis pipelines and reporting dashboardsnStay current with 3GPP Release roadmaps and proactively identify testing gaps as standards evolven

Masters degree (MS) in Electrical Engineering Computer Engineering Telecommunications or a related fieldn3 years of hands-on experience in wireless system testing interoperability testing or protocol validationnDeep knowledge of 3GPP standards including 5G NR physical layer (FR1 and FR2/mmWave) RRC NAS and related protocolsnProficiency in scripting and automation (Python shell or similar) for test development and result analysisnExperience with AI/ML tools for test data analysis anomaly detection or tool developmentnFamiliarity with lab test equipment such as network emulators protocol analyzers and signal analyzers

Experience with 6G research concepts IMT-2030 frameworks or pre-standard wireless technologiesnHands-on experience with carrier interoperability testing and field trial environmentsnKnowledge of 5G core network architecture (5GC) network slicing and SA/NSA deployment modesnExperience with iOS or embedded platform debugging and log analysis toolsnBackground in RF performance testing including beam management MIMO and FR2 mmWave characterizationnFamiliarity with test management and CI/CD pipelines for continuous test integrationnStrong cross-functional communication skills with the ability to present technical findings to diverse audiencesn