International Roaming Network Support Specialist - VOIS
Core
Subject matter expert for international roaming platforms and services, ensuring availability, security, and performance for 4G and 5G networks.
Role type
Senior IC network operations specialist (international roaming)
Builds
International roaming services, applications, and core network performance for Vodafone Group and partner markets
Domain
Telecommunications, International Roaming, 4G/5G Networks
Required skills
International roaming architecture and protocols (Diameter, SS7, GTP, Gx, Gy), 4G/5G network operations, Linux administration, database administration, security hardening, incident management, change management, root-cause analysis, Kubernetes/container orchestration
Preferred skills
Experience with Tekelec DRA/DSR, Oracle Eagle STP, Titanium Firewall, 5G-SEPP, TOMIA platforms, Platform as a Service, Container as a Service
Technologies
Tekelec Diameter Routing Agent, Diameter Signalling Router, Oracle Eagle Signalling Transfer Point, Titanium Firewall, 5G Security Edge Protection Proxy, F5 DNS, TOMIA, Red Hat Enterprise Linux, CentOS, Ubuntu, Kubernetes
Responsibilities
Own operational support for international roaming platforms including services, applications, hardware, and configurations; Investigate and resolve complex incidents within agreed service levels; Review, schedule, and implement controlled changes including software upgrades and security patches; Monitor and optimize core network performance indicators; Troubleshoot protocol and signalling flows across 2G, 3G, 4G, and 5G networks; Coordinate with technology suppliers on complex incidents and technical remediation.
Seniority
Senior, hands-on IC
