Modem System Test Engineer - Wireless Technologies and Ecosystems
Core
Develop advanced system evaluation and debugging capabilities for cellular technologies to impact iPhone user experience globally.
Role type
Senior IC modem system test engineer (wireless)
Builds
Robust, well-tested protocol software and system-level test infrastructure for 5G NR and emerging standards.
Domain
Telecommunications / Wireless / 5G
Deliverable
production ML models | product features
Required skills
3GPP LTE/5G NR protocol stack knowledge, Python for test automation, digital communication principles (OFDM, modulation), root-cause analysis of protocol traces, testbed development
Preferred skills
Machine learning frameworks (PyTorch, TensorFlow) for wireless problems, 3GPP standardization workflows, RF interface protocols
Technologies
Python, PyTorch, TensorFlow, 3GPP specs, SDR, network emulators
Responsibilities
Define and execute system-level test plans for 5G NR; Analyze protocol traces and diagnostic logs to debug failure modes; Build scalable test automation using ML/data-driven methods; Partner with firmware and RF teams to validate bug fixes; Contribute to internal test infrastructure and evaluation platforms
Seniority
Senior, hands-on IC