Roles and Responsibilities: 1. High speed overpass product SI test, debug and analysis failure reason. 2. Responsible for equipment maintenance and work with vendor if any issue with equipment. 3. Work with SI team to transfer test setup from NPI to mass production. 4. Training SI technicians for SI test. 5. Report to US team for any progress or issues on production line SI test, good English speaking & writing。 Experience/Education Required 1. Electronic information Engineering or Communication Engineering major, bachelor degree or above; 2. Familiar with Singal integrity and transmission line theory. 3. Familiar with SI test with VNA,PNA or PXI, and TDR. 4. Relative working experience with 3 years or above. 5. Good with English speaking, listening, writing and reading.