Job Summary
We are looking for experienced Core Network professionals with robust 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 subscribe
📌 Senior Engineer (India)
🏢 Mavenir
📍 India