We are looking for a highly skilled Core Network Engineer to manage and maintain HLR/HSS systems and provisioning platforms in a multi-country telecom environment. The role involves handling SIM lifecycle management, core network provisioning, troubleshooting IMS call flow issues, and supporting operational excellence across telecom network systems. Key Responsibilities: Configure, operate, and maintain HLR/HSS systems in a multi-country environment Support SIM and voucher management systems operations and maintenance Handle provisioning of core network components and IT systems Collaborate with core network teams, architects, vendors, and country operations teams Troubleshoot and resolve operational issues related to provisioning platforms and HLR/HSS systems Manage SIM profile provisioning, testing, and lifecycle management Work with IMS teams to resolve VoLTE, VoWiFi, USSI, and handover-related issues Perform Wireshark tracing and debugging for infrastructure-related incidents Suppo...