Full Description

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

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

• 2G Voice Services
• 4G/VoLTE Consumer Voice Services
• 4G/VoLTE Enterprise Voice Services (UltraCard & Corporate VPN)
• Fixed Consumer Voice Services (DSL & Cable)
• Fixed Enterprise Voice Services (Trunking Services)

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

Fixed IMS Environment

Experience working with

• Nokia IMS
• 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
• Kubernetes
• OpenStack
• Python

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• 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.