Core Network Engineer


Job Location:

Chennai - India

Salary: Not Disclosed
Experience Required: 10-12years
Posted on: 17 days ago
Vacancies: 1 Vacancy

Job Summary

We are looking for a highly skilled Core Network Engineer to manage and maintain HLR/HSS systems and provisioning platforms in a multi-country telecom environment. The role involves handling SIM lifecycle management core network provisioning troubleshooting IMS call flow issues and supporting operational excellence across telecom network systems.

Key Responsibilities:
  • Configure operate and maintain HLR/HSS systems in a multi-country environment
  • Support SIM and voucher management systems operations and maintenance
  • Handle provisioning of core network components and IT systems
  • Collaborate with core network teams architects vendors and country operations teams
  • Troubleshoot and resolve operational issues related to provisioning platforms and HLR/HSS systems
  • Manage SIM profile provisioning testing and lifecycle management
  • Work with IMS teams to resolve VoLTE VoWiFi USSI and handover-related issues
  • Perform Wireshark tracing and debugging for infrastructure-related incidents
  • Support geographical expansion projects through HLR integration and configuration
  • Drive process automation and operational improvements
  • Plan SIM capacity and forecast operational requirements


Requirements

  • BE in Electronics Computer Science or related field
  • 1012 years of experience in telecom core network operations
  • Strong knowledge of HLR/HSS STP and DRA systems
  • Experience with IMS call flows such as VoLTE VoWiFi and handovers
  • Hands-on experience in SIM provisioning and SIM profile management
  • Strong database knowledge in Oracle SQL Server or similar platforms
  • Experience with PL/SQL UNIX administration and batch scripting
  • Knowledge of Wireshark tracing and troubleshooting
  • Familiarity with AWS or other cloud platforms
  • Working knowledge of Jira and Confluence
  • Shell scripting/programming knowledge is an added advantage



Required Skills:

HLR/HSS STP DRA IMS VoLTE VoWiFi SIM Provisioning SIM Profile Management Voucher Management Oracle SQL Server PL/SQL UNIX AWS Wireshark Shell Scripting Jira Confluence Core Network Operations

We are looking for a highly skilled Core Network Engineer to manage and maintain HLR/HSS systems and provisioning platforms in a multi-country telecom environment. The role involves handling SIM lifecycle management core network provisioning troubleshooting IMS call flow issues and supporting operat...