Core Network Engineer

• 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
  


• 10–12 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