1GLOBAL is a technology‑driven global mobile communications provider dedicated to empowering enterprises worldwide to unlock the full growth potential of mobile connectivity. It operates as a fully regulated Mobile Virtual Network Operator in ten countries and a regulated telecommunications operator in an additional 31 countries, connecting over 43 million devices globally.

Position Overview

We are seeking a talented and detail‑oriented Roaming IREG Engineer to manage the entire roaming process and procedures. As an IREG Engineer you will be responsible for the technical setup, testing, and maintenance of international roaming and interconnect services.

This is a Lisbon‑based position and relocation will be required; relocation support may be provided for the selected candidate.

Key Responsibilities

• Plan, execute, and document IREG tests (IR.24, IR.35, IR.50, etc.) for voice, SMS, and data services in line with GSMA standards.