Verified Job
Hardware / Network Engineer
Core Network Engineer
Hardware / Network Engineer
#716616
Remote / WFH
Cynosure Corporate Solutions · Chennai, Tamil Nadu
Job Description
Job description
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
• 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
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
• 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
