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.