Job Title

Role SummaryThe IREG Roaming Team Leader is responsible for end-to-end ownership of IREG operations, including IREG testing, troubleshooting, Huawei core configuration validation, and 24/7 operational support for inbound and outbound roaming services.The role includes hands-on technical responsibilities as well as L1 team leadership, ensuring service stability, compliance with GSMA IREG standards.This is a purely technical and operational role, with no commercial or contractual responsibilities.Key ResponsibilitiesIREG Operations & Technical Ownership• Take full responsibility for IREG operations for Comium (Inbound & Outbound)• Conduct and support IREG testing and troubleshooting with roaming partners• Prepare and maintain IREG project technical documentation, test plans, and sign-off reports• Perform post-launch quality testing on a regular basis to ensure service stabilityCore Network & Huawei Expertise is a plus• Actively monitor and analyze SS7 and Diameter traces• Perform configuration validation and troubleshooting on Huawei core network elements, including:– HLR / HSS / UDM– STP / DRA• Validate roaming behavior related to authentication, routing, APN resolution, and session establishment24/7 Operations & Team Leadership• Lead and manage the L1 IREG support team on a 24/7 basis• Act as the primary escalation point (L2) for roaming-related incidents• Coordinate with internal technical teams and external partners to ensure rapid issue resolutionMonitoring & Performance Management• Monitor daily signaling usage, IPX bandwidth consumption, and roaming traffic patterns• Monitor voice interconnect routes related to roaming and sponsored eSIM trafficCross-Team Coordination• Coordinate closely with internal teams and external roaming partners based on priority plans• Maintain updated contact matrices for fast escalation and incident handling• Work closely with the IT / OCS team/Commercial Roaming Manager to understand and support implementation of CAMEL logic requirementsTechnical Scope• IREG domains: Voice (where applicable), SMS, Data• Protocols and interfaces:– SS7 (MAP)– Diameter (S6a, Gy)– GTP-C / GTP-U (operational validation level)• Tools & systems:– Wireshark / tcpdump– Huawei core network management tools– Signaling and IPX monitoring platformsRequired Profile• Strong hands-on experience with IREG testing and roaming operations• Proven experience with Huawei core network environments• Solid understanding of international roaming signaling flows• Ability to analyze and troubleshoot SS7 / Diameter traces• Experience leading or coordinating 24/7 operational support teams• Experience working with IPX providers, roaming hubs, or sponsored IMSI environments