SMF Test engineer

Infosys; Bengaluru; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

Infosys in Bengaluru seeks a network engineer to work on 4G/5G core deployments and validation. You will validate PFCP, GTPv2-C, Diameter, and REST APIs, and contribute to lab and production testing of packet core functions.

Responsibilities include deploying and troubleshooting core network components in Kubernetes-based environments, analyzing logs, and driving issue resolution with R&D teams. A strong focus on test automation and AI-assisted quality improvements is required.

Qualifications

• Bachelor's degree in Computer Applications, Engineering or Technology.
• Strong knowledge of 4G/5G networks and core packet core components.
• Experience with lab or production validation of packet core functions.

Responsibilities

• Strong working knowledge of 4G EPC and 5G Core Packet Core networks.
• Hands-on system testing on 5G Core: SMF and 4G EPC: PGW, SAEGW, SGW.
• Experience deploying, configuring, troubleshooting, and validating packet core network functions.
• Working experience in Kubernetes-based containerized environments.
• Understanding of end-to-end call flows, mobility, charging, policy control and subscriber management across LTE, NSA and SA networks.

Skills

Kubernetes

5G Core

Packet Core Testing

Rest APIs

Wireshark

Automation Testing

Education

Bachelor Of Comp. Applications

Bachelor of Engineering

Bachelor Of Technology

Tools

Wireshark

tcpdump

Job description

Roles & Responsibilities

• 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 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)
• EPC Architecture and Procedures (TS 23.401, TS 23.402)

Good understanding of the following 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

Educational Requirement

• Bachelor Of Comp. Applications,Bachelor of Engineering,Bachelor Of Technology

Preferred Skills

• Technology -> Programming Languages - 4GL -> 4G languages,Technology -> Enterprise / Domain Platforms -> EPC Solution

Service Line

• Engineering Services