Telecom Voice Core Network Testing Engineer (f/m/d)

HCLTech Germany; Düsseldorf; Vor Ort; EUR 60.000 - 90.000; Vollzeit

Zusammenfassung

HCLTech is seeking an experienced Telecom Voice Core Network Testing Engineer to join our telecom technology team in Düsseldorf. The role focuses on R4, IMS, VoLTE, VoWiFi, and Fixed Voice Services Testing.

You will manage end-to-end testing activities, create and execute test cases, perform configuration validation, and troubleshoot defects. Strong knowledge of Nokia Core Network Elements and related tools is essential, with exposure to Docker/OpenStack/Python a plus.

Qualifikationen

• Experience with Nokia R4, VoLTE and Fixed Voice testing.
• Hands-on testing of VoIP, IMS, VoLTE and VoWiFi Core Networks.
• Knowledge of Nokia Core Network Elements and related testing tools (SBC, MGCF, MGW, NTAS).
• Exposure to virtualization and cloud/test infra basics (Docker, OpenStack, Python) preferred.

Aufgaben

• End-to-end test management and execution.
• MOP testing and validation.
• Troubleshooting and root cause analysis.
• Trace, log, and event analysis.
• Lab hardening and feature validation.
• New feature testing and clean-run validation.
• Test automation script optimization and enhancement

Kenntnisse

Telecom Domain Expertise

VoIP & IMS

VoLTE & VoWiFi

Tools

SBC

CFX 5000

NTAS

MGCF

MGW

IBCF

TrGW

IpSmGw

EPDG

WebRTC

OpenStack

Docker

Python

Jobbeschreibung

We are HCLTech, one of the fastest-growing large tech companies in the world and home to 225,000+ people across 60 countries, supercharging progress through industry-leading capabilities centered around Digital, Engineering and Cloud. The driving force behind that work, our people, are diverse, creative, and passionate, raising the bar for excellence on a regular basis. We, in turn, work hard to bring out the best in them as we strive to help them find their spark and become the best version of themselves that they can be. If all this sounds like an environment you’ll thrive in, then you’re in the right place. Join us on our journey in advancing the technological world through innovation and creativity.

We are looking for an experienced Telecom Voice Core Network Testing Engineer with strong expertise in R4, IMS, VoLTE, VoWiFi, and Fixed Voice Services Testing to join our growing telecom technology team.

Key Responsibilities:

Manage end-to-end R4/VoLTE Testing activities including:

• Functional Testing
• Regression Testing
• KPI Testing
• Sanity Testing

Perform:

• Requirement gathering and analysis
• Test case creation, review, and execution
• Configuration validation
• Defect tracking, troubleshooting, and debugging

Support testing and coordination for:

Required Skills & Experience:

Telecom Domain Expertise

• Strong knowledge of Nokia R4, VoLTE, and Fixed Voice Network Testing
• Hands-on experience with VoIP, IMS, VoLTE, and VoWiFi Core Networks

Nokia Core Network Elements

Experience with:

• SBC
• CFX 5000
• NTAS
• MGCF
• MRFC AGW
• MGW
• IBCF
• TrGW

Additional knowledge of:

• IpSmGw
• EPDG
• WebRTC

Experience working with:

• SBC
• CFX
• NTAS

Additional Responsibilities

• End-to-end test management and execution
• MOP Testing and validation
• Troubleshooting and root cause analysis
• Trace, log, and event analysis
• Lab hardening and feature validation
• New feature testing and clean-run validation
• Test automation script optimization and enhancement

Preferred Skills

Basic knowledge of:

• Docker
• OpenStack
• Python

We promote equal opportunities for all employees, regardless of their cultural and social background, gender, disability, age, religion, beliefs, and sexual identity. We give priority consideration to severely disabled applicants and those of equal status in the case of equal suitability.