VoLTE Core Network Engineer – Hybrid (Lisbon)

First Point Group; Lisboa; Hybrid; EUR 40,000 - 60,000; Full time

Job summary

A leading technology recruitment agency is looking for an experienced Voice Core Engineer in Lisbon, Portugal. This role involves optimizing voice services and working with VoLTE architecture and signaling protocols in a hybrid work setup. The ideal candidate should have at least a BSc in Telecommunications and strong communication skills in both Portuguese and English. This position is under a contract until March 2026, with opportunities for ongoing engagement.

Qualifications

• Hands-on expertise in IMS and CS core networks.
• Experience working with telecom operators in customer-facing roles.
• Certifications from Ericsson, Huawei, Nokia, or Cisco are advantageous.

Responsibilities

• Operate and maintain IMS/CS Voice Core network components.
• Analyze and troubleshoot IMS voice flows and procedures.
• Collaborate with cross-functional teams.

Skills

VoLTE architecture

Signaling protocols

Core network nodes

Communication skills in Portuguese

Communication skills in English

Education

BSc or MSc in Electronics, Telecommunications, or Computer Engineering

Tools

Huawei

Oracle

Ericsson

Mavenir

Nokia

Job description

A leading technology recruitment agency is looking for an experienced Voice Core Engineer in Lisbon, Portugal. This role involves optimizing voice services and working with VoLTE architecture and signaling protocols in a hybrid work setup. The ideal candidate should have at least a BSc in Telecommunications and strong communication skills in both Portuguese and English. This position is under a contract until March 2026, with opportunities for ongoing engagement.