Roaming Network Engineer 3 (Chennai)

Roaming Network Engineer 3 - configuration and troubleshooting of HLR/HSS, STP, DRA, and EPC components. - roaming architecture, protocols (MAP, Diameter, GTP), and GSMA standards (IR.21, IR.85, IR.88) - configuring and managing routers, switches, and firewalls (Cisco, Juniper, Fortinet-positive to have - Proficiency in scripting and automation tools (Python, Ansible, Bash) for network orchestration and monitoring. -Good to have - Familiarity with 5G architecture, VoLTE, VoWiFi, and IMS core components.-strong knowledge.- - Certifications such as CCNP, JNCIP, or Nokia NRS II are highly desirable. - Manage end-to-end IREG testing and onboarding of new roaming partners, coordinating with MNOs and third-party vendors. - Own the daily automated testing framework for roaming services, ensuring proactive detection and resolution of service degradation. - Monitor and optimize roaming traffic flows, latency, and throughput across international interconnects. - Strong analytical and problem-solving skills, with the ability to resolve complex network issues across multi-vendor environments. .