UPF Test Engineer

Truminds Software Systems; Gurugram District; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Truminds Software Systems in India is hiring a telecom/test engineer with 4–7 years of experience to lead packet core testing, including 4G LTE and 5G Core technologies. You will develop test plans, analyze 3GPP standards, and validate performance, security, and functionality of carrier-grade networks.

Candidates should possess strong Linux/Unix skills, expertise in traffic generation tools, and hands-on experience with Kubernetes and OpenStack for test environments.

Qualifications

• 4–7 years of experience in telecom/test engineering or equivalent.
• Strong expertise in Packet Core product testing and end-to-end call flows.
• Hands-on knowledge of 4G LTE and 5G Core technologies is mandatory.
• Proficient in Linux/Unix administration and log/trace analysis.

Responsibilities

• Develop and execute detailed test plans and strategies for telecom products.
• Analyze 3GPP standards, RFCs, and design specs to validate systems.
• Troubleshoot issues using logs, packet captures, and lab reproductions.
• Utilize AI-powered testing tools and automation where applicable.
• Validate performance, security, and functional aspects of networks.

Skills

Packet Core testing

5G Core technologies

Kubernetes/OpenStack

Linux/Unix administration

Wireshark/packet analysis

Automation/testing frameworks

Networking protocols TCP/IP/UDP/QUIC

Scripting/automation

Traffic generation tools (T‑Rex/Spirnt

Education

BE/B.Tech in ECE or CS

Tools

T-Rex

Spirent

iPerf

Wireshark

Kubernetes

OpenStack

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