Packet Core Test Engineer (4G / 5G Core Network Testing)

Truminds; Gurugram District, Bengaluru, Delhi; Hybrid; INR 900,000 - 1,500,000; Full time

Job summary

Truminds is seeking a Telecom QA/Test Engineer with expertise in packet core testing, 5G/3GPP, and end-to-end call flows. You will design thorough test plans, analyze logs, and validate performance, security, and robustness in Kubernetes or OpenStack environments.

You should have strong Linux/Unix skills, experience with traffic generators (T-rex, Spirent, iPerf), and proficiency in scripting and automation frameworks to reproduce field issues in lab setups.

Qualifications

• Expertise in telecom testing for packet core and 5G networks.
• Ability to design thorough test plans from standards and docs.
• Experience with traffic generators and lab debugging.
• Proficient in Linux/Unix and log analysis.
• Familiarity with Kubernetes or OpenStack environments.
• Strong scripting and automation skills.

Skills

Packet core testing

End-to-end call flows

3GPP standards

RFCs

CGNAT knowledge

5GC knowledge

Deep Packet Inspection

TCP/IP

UDP

QUIC

Routing protocols

BGP

ISIS

LDP

MPLS

OSPF

Kubernetes

OpenStack

Wireshark

Linux/Unix

Log analysis

Debugging

Functional testing

Security testing

Performance testing

Scripting

Automation framework

Tools

T-rex

Spirent

IPerf

Job description

• Expertise knowledge on Packet core Telecom domain testing & end to end call flows.
• Going through 3GPP standards, RFCs, architectural and design documents to produce thorough and in-depth test plans for testing.
• Knowledge on CGNAT would be an added advantage.
• Overall 5GC network understanding would be added advantage.
• Knowledge on Deep Packet Inspection.
• Expertise in TCP/IP, UDP, QUIC protocols.
• Strong knowledge in routing protocols such as BGP, ISIS, LDP, MPLS and OSPF.
• Ability to build test setups as per the requirements of the features in Kubernetes or OpenStack environment.
• Analyse system/application logs and test simulator logs for debugging issues and identifying root causes for the problems.
• Strong knowledge on Linux/Unix systems, installation & troubleshooting.
• Strong debugging skills to analyse field issues with logs, packet captures analysis using Wireshark to identify potential problems and re-creating the same in the lab.
• Strong Expertise in Functional, Security and Performance testing.
• Expertise in tools such as T-rex, Spirent, IPerf and so on.
• Strong knowledge in scripting languages and hands-on experience on any of the automation framework.