Responsibilities include: • Bring-up, functional verification and debugging of RF subsystem/features in 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 3GPP compliance in mass production (2G/3G/4G/5G) in SC / CA for FDD / TDD mode.• 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 cross functional lead across disciplines using assigned experts (System Engineering, Firmware Engineering, Component Verification, Tooling Team, Test campaign owner).• Improve Quality-gate / regression testing for RF software releases based on found issues.• Being part of RF feature definition.• Contribute to Release notes satisfying industry state of the art.• Prepare and present status & progress tracking.• Train partner teams on RF subsystem features, how to debug and optimise.