Network SME

Greetings from Tata Consultancy Service!!!

Job Title: Network SME Tech Lead

Experience Required: 10-12 years

Location: Gurgaon / Noida / Delhi

• 5+ year working experience with 3GPP evolved Packet core, with detailed knowledge of the UE attach procedures (AS, NAS), the EPC architecture and protocols
• 5+ year experience in 3GPP LTE and EPC design and architecture
• Excellent understanding of 3GPP Call Flows - 2G, 3G, 4G, MNP, Camel, CSFB, SRVCC, VoLTE etc
• In-depth knowledge on mobile networks, especially on 3GPP LTE 4G and 5G standards in Packet Core and the interface towards the Radio Network
• Detailed knowledge of the protocol stack and layer functionality, control and data plane, specifically UE-eNB, and NAS (UE-MME), X2, and eNB-SGW, and SGW-PCE
• Excellent end to end expertise related to Network topology and various interfaces (S1, S6a, S5/S8, SLg, Sh, SLs, S11, SGI, CX, GM, RX, SY, GX, GY and etc.)
• Detailed knowledge of HSS, HSS-MME interaction, subscriber profile and subscriber authorization and authentication, functionality and role in network
• Experience in Network Level Troubleshooting including Performance / KPI issues
• Knowledge and working experience of WiFi