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 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
Robust troubleshooting and analytical skills
Good communication and stakeholder coordination abilities
Ability to work independently and in a team workplace
Willingness to work in shifts (if applicable)

📌 Senior Engineer Core Network Hlr Titanium Bengaluru
🏢 Mavenir
📍 Bengaluru