• Strong working knowledge of 4G EPC and 5G Core Packet Core networks.
• Hands-on system testing experience on one or more of the following products:
• 5G Core: SMF o 4G EPC: PGW, SAEGW, SGW
• Proven experience deploying, configuring, troubleshooting, and validating packet core network functions in lab or production environments.
• Working experience in Kubernetes-based containerized environments.
• Strong understanding of end-to-end call flows, session establishment, mobility procedures, charging, policy control and subscriber management across LTE, NSA and SA networks.
• Thorough understanding of 3GPP specifications covering:
• 5G Core Architecture and Procedures (TS 23.501, TS 23.502) o EPC Architecture and Procedures (TS 23.401,



TS 23.402)
• Valuable understanding of the following protocols:
• Protocols: PFCP, GTPv2-C, Diameter, SCTP, HTTP/2 and REST APIs
• Experience with packet analysis tools such as Wireshark/tcpdump and telecom test tools for network function validation.
• Ability to analyze logs, troubleshoot failures, and drive issues through resolution with R&D; teams.
• Strong focus on test automation from Day 1.
• Ability to effectively leverage AI tools to improve quality and productivity

📌 SMF Test engineer (Bengaluru)
🏢 Infosys
📍 Bengaluru