About us Our client, a leading global IT service provider,is recruiting for a Data Core Testing Engineer to join their business in Germany. Position Title: Data Core Testing Engineer Position Type: Contract Start Date: ASAP Location: Dusseldorf, Germany Contact: Davor Molnar | +49 (0) 89 23 88 98 63 Tasks Required Skills and Roles & Responsibilities: Expert knowledge of packet core theory, including architecture, protocol, and call flow, on both 4G EPC and 5GC Expert knowledge of 4G EPC element functionality, including MME, SGW, PGW, HSS, PCRF, OCS Strong knowledge of 5GC element functionality, including AMF, SMF, UPF, UDM, UDR, AUSF, PCF, CHF, NRF and NSSF Strong knowledge of end-to-end packet core network troubleshooting Hands-on experience with VNF and CNF delivery...