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

- Valuable 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)

📌 Senior Engineer -Core Network(HLR Titanium) (Bangalore Urban)
🏢 Mavenir
📍 Bangalore Urban