Engineer - Test Execution Core + Policy Charging - (1243.2)

Tech Mahindra Network Services has an opening for an Engineer - Test Execution Core + Policy Charging.Expertise with Ericsson Charging, Billing and activation systemsExpertise of Switch Control and subscriber activation and provisioning systems.Expert knowledge of 3GPP call flows and complianceKnowledge of 5G / CUPS / LTE Subscriber Policy (HSS / HLR), Expertise with Offline / Online Charging architectures (such as PCRF Gx and OCS Gy, interfaces)Experience with OCS, CHF, CDRs, Gy, Gy metering, Online charging, Gy Quota, Sy, Gy redirectionKnowledge of DPI (SPI (L3 / L4), L7 parsing, L7 Signatures, SNI technique, DNS parsing)Experience with PCRF, PCF, PCC, 3GPP QOS Management, Gx, Gx Charging rulesOSS and BSS Protocols for billing and provisioning interfaces (Gz, SOAP, Rest)Knowledge of South/North bound APIs for integration and automation frameworkJob Requirements