Tay Zar Phyo

End to End lead of Managed Services Network Operation Delivery covering below functions-: - IP Core & SDN - NFVi/Telco Cloud - Mobile Core (PS, CS & VoLTE/IMS) - RAN - Access & Transmission - Change Management - Fault Management - 3PP Management - Incident Management - Performance Management ( Data Analyst) Team size approx 100 resources which include engineering manager, lead and engineers.

• Delivery responsible for CS Core, PS Core, IMS/VoLTE, Telco Cloud/NFVi, IP Core and SDN Domains. • Customer Management, Strategic Planning and Execution for Managed Services Network Delivery. • Led the delivery of Core Network, Cloud/NFVi, IP Core and SDN Network Planning, Design, Optimization and Operation. • Transition and Transformation of Client’s Legacy Core Nodes to Virtualization, Collaborating with OEM Vendors. • Solution Validation, Design Verification/Recommendation, and Deployment Support for NFVi (Cloud infrastructure), SDN (Software Defined Network), and Virtualized applications (IMS/VoLTE & PS Core). • Migrated 2G and 3G Core Network Services to 4G Core Network (10 million Subs). • Database Migration Support for 18 million Provisioned Subscribers from Huawei HLR/HSS to Nokia SDM. • Drive Automation of Service Management Layer on NFVi and in Core Network Domains (CS, PS and IMS/VoLTE). • Performance Management and Optimization of Core Network Key Performance Indicators (KPIs). Governance and provide directive for the continuous improvement of Core Network KPIs. • Capacity Management of Core Network Systems. • Strategic Network Design Change in term of Redundancy Improvement, Capacity Adjustment, Network Performance Improvement, and Disaster Recovery.,. etc. • Planning, Configuration, Implementation and Integration of Core Network Nodes, NFVi Cloud Infra and SDN Network. • Identify Add-on sale opportunities, internally align with solution sale team, and solution propose to client. • Ensure Network Security for the Efficiency, Stability and Reliability of Core Network Systems and Business Continuity Process (BCP) plan in best practice. • Cooperation with Cross Functional Domains for the seamless delivery of Managed Services Operation. • Discussion/Meeting with Client’s Technology dept, IT dept, Business dept, Revenue Assurance, Finance, andMediation to support the requirements (New Product Rollout, Billing/CDR Verification, Provisioning Support, etc.)

• Lead of Voice Core Network (CS and IMS/VoLTE) Design, Planning, Optimization, and Operation. • Responsible for Solution, Design, Planning, and Implementation of CS and IMS/VoLTE Core Network. • Led Optimization of CS and IMS/VoLTE Core Network Performance Key Indicators (KPIs) improvement. • Strategic Tuning of Network Timers, Parameters, and Features Rollout for improvement of CS and IMS Network KPIs. • Weekly and Monthly Governance with Radio Network Domain for the continuous improvement of Core Network KPIs. • Led Operation and Fault Management of CS and IMS/VoLTE Core Network. • Manage Critical Network Failures and Network outages are resolved within Service Level Agreement (SLA). • Software Update and Upgrade of Core Network Elements and Product Lifecycle Management (LCM). • Solution and integration with Signaling Firewall for the security of SS7 Signaling Setwork. • Support Configuration, Functional Testing, and Troubleshooting for International Roaming Services. • Capacity management for CS/VoLTE Core network Systems. • Discussion/Meeting with Client’s Technology dept, IT dept, Business dept, Revenue Assurance, Finance, and Mediation to support the requirements (New Product Rollout,Billing/CDR Verification, Provisioning Support, etc.)