UPF Test Engineer

Truminds Software Systems; Bengaluru; On-site; INR 1,200,000 - 2,800,000; Full time

Job summary

Truminds Software Systems in Bengaluru seeks an experienced telecom test engineer to design and execute test plans for Packet Core products. You will analyze 3GPP standards, RFCs, and architecture docs to create robust test strategies across 4G LTE and 5G Core environments.

Proficiency in Linux/Unix, scripting, and lab automation is essential. Hands-on experience with network testing tools (Spirent, iPerf, T-Rex) and traffic generators, plus familiarity with Kubernetes and OpenStack, will help

Qualifications

• BE/B.Tech in ECE or CS or equivalent.
• 4–7 years of experience in telecom/test engineering.
• Strong understanding of 4G LTE and 5G Core technologies.
• Proficiency in Linux/Unix and packet analysis.

Responsibilities

• Design and execute test plans for Packet Core products.
• Analyze 3GPP standards, RFCs, and design specs for testing.
• Develop and maintain test environments on Kubernetes/OpenStack.
• Troubleshoot issues via logs, captures, and lab reproductions.
• Execute functional, security and performance testing for telecom products.

Skills

LTE testing

5G Core

Network testing

Linux/Unix

Scripting

Troubleshooting

Education

BE/B.Tech in ECE or CS

Tools

Kubernetes

OpenStack

Wireshark

T-Rex

Spirent

iPerf

Job description

Experience: 4-7 years
Qualification: BE/B.Tech from ECE and CS or equivalent.

Job Description

• Strong expertise in Packet Core product testing, including comprehensive understanding of end-to-end call flows.
• Ability to analyze and interpret 3GPP standards, RFCs, architecture documents, and design specifications to create detailed and effective test plans and test strategies.
• Extensive knowledge and hands‑on experience in 4G LTE and 5G Core technologies (mandatory).
• Working knowledge of PCF/PCRF functionality and policy control frameworks is highly desirable.
• Exposure to Carrier Grade NAT (CGNAT) technologies is an added advantage.
• Good understanding of Deep Packet Inspection (DPI) concepts and implementations.
• Familiarity with AI‑powered testing tools and automation leveraging AI technologies is a plus.
• Strong expertise in networking protocols, including TCP/IP, UDP, and QUIC.
• In-depth knowledge of routing and transport technologies such as BGP, IS‑IS, OSPF, MPLS, and LDP.
• Hands‑on experience in building and configuring test environments on Kubernetes and/or OpenStack platforms based on feature validation requirements.
• Ability to analyze system, application, and simulator logs to troubleshoot issues, identify root causes, and drive resolution.
• Strong proficiency in Linux/Unix administration, installation, configuration, and troubleshooting.
• Excellent debugging and problem‑solving skills, including analysis of field issues, packet captures, and Wireshark traces, with the ability to reproduce customer issues in lab environments.
• Proven experience in Functional, Security, and Performance Testing of telecom/network products.
• Hands‑on expertise with industry‑standard traffic generation and performance validation tools such as T‑Rex, Spirent, iPerf, and similar platforms.
• Strong scripting and automation skills with hands‑on experience in developing or working with test automation frameworks