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Core Network Engineer
Job Location:
Salary:
Experience Required:
Posted:
24 May 2026 (30+ days ago)
Posted:
Application Deadline:
21 August 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
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
