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About the role
Job Summary We are looking for experienced Core Network professionals with strong hands-on expertise in HSS, UDR, and ePDG platforms. Candidates with HLR Titanium operational experience will be highly preferred. The role involves day-to-day operations, troubleshooting, configuration, and support of critical mobile core network elements in a high-availability environment. Key Responsibilities Core Network Operations Perform L2/L3 operations and maintenance for HSS, UDR, and ePDG nodes Monitor system performance, alarms, KPIs, and health checks Troubleshoot complex issues related to subscriber data, authentication, authorization, and mobility Manage incident handling, problem management, and service restoration within SLA HLR Titanium Hands-on experience with HLR Titanium operations including: Subscriber provisioning and modifications Alarm and fault management Database maintenance and system health monitoring Support upgrade, migration, and patching activities Configuration & Support Configure network elements and perform change management activities Coordinate with NOC, vendors, and cross-functional teams for issue resolution Support OSS/BSS integrations and interface troubleshooting (Diameter, MAP, SS7, IPsec) Documentation & Compliance Prepare and maintain operational procedures, SOPs, and technical documentation Participate in audits, DR drills, and capacity planning exercises Required Skills & Experience Mandatory Technical Skills Hands-on experience with one or more : HSS (Home Subscriber Server) UDR (Unified Data Repository) ePDG (Evolved Packet Data Gateway) Strong operational exposure to HLR Titanium Good understanding of LTE / VoLTE / 5G Core concepts Protocol knowledge: Diameter, MAP, SS7 IP, TCP/IP, VPN, IPsec Experience working in 24x7 operations or production support environments Tools & Platforms Linux/Unix system administration Network monitoring and alarm tools Log analysis and troubleshooting utilities Nice to Have Exposure to 5G core subscriber management Experience with vendor solutions (Ericsson / Nokia / Oracle / Huawei) Scripting knowledge (Shell / Python) Prior experience in managed services or telecom operations projects Education BE / B.Tech / MCA or equivalent technical qualification Soft Skills Strong troubleshooting and analytical skills Good communication and stakeholder coordination abilities Ability to work independently and in a team environment Willingness to work in shifts (if applicable)
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