Solution, Architecture and design ENGG of EPC (Packet Core) 4G network and with exposure of multi-OEM technologies planning, implementation and optimisation of Packet Core Network (4G is mandatory, 2G/ 3G is an advantage) Wireless Operations, Knowledge on Multi-Vendor Packet core network products and their architecture. Experience preparation of HLD/LLD for a given requirement on the packet core network Strong knowledge in 4G core network, interfaces to eNodeB, IP core network, Intra packet core interfaces viz. between MME, HSS, PCRF, SGW,