Champika Munasinghe

Experience

• 

  Dialog Axiata PLC

  Oct 2003 - now

  1. Formulate security strategy and security architecture for Telecommunication network2. Develop short-term and long-term road maps for Telecommunication security scope3. Implement security standards (GSMA and international standards) in the telco network 4. Identify protocol level vulnerabilities in signaling protocols (SS7, SIP, DIAMETER, GTP etc) and implement protective measures 5. Research/study & Identify security weaknesses and vulnerabilities of 2G,3G,4G ,5G architectures and identify & implement protective measures 6. Implement and operationalize ISO 27001:2022 ISMS information security governance framework and NIST Cyber Security Framework in Telco network7. Establish processes and practices to guide group tech Telco projects by incorporating security requirements, security guidelines, specifications 8. Vulnerability assessments, Penetration tests and security audits in Telco network and remediate security vulnerabilities9. Security hardening of Telco systems with security hardening standards and frameworks such as MBSS (Minimum Baseline Security Standard) , CIS (Center for Internet Security) frameworks, vendor specific security best practices 10. Identification of security risks and prepare action plans to mitigate those risks & implementation of action plans/risk mitigation measures 11. Root cause analysis Security incidents and implement corrective measures 12. Establish incident detection mechanisms and processes , identify security incidents and resolve incidents14. Guide, direct and manage system vendors to implement solutions for security issues/incidents, fix security vulnerabilities and implement security related configurations 15. Provide Telco expert support for the Axiata collective brain projects (Group of expert resources from the all member companies of Axiata group) and prepare security guidelines, system security compliance matrices, evaluate system vendors, implement Axiata Groupwide security controls and practices Show less 1. Operation and maintenance of Core Network (Mobile Voice core network, Packet core network, Enterprise voice core network and Roaming network ) 2. Trouble shooting and rectification of network and customer issues of Core Network3. Resolution of hardware, software and service errors/faults of Core Network4. Implement New technologies & new systems 5. Implement Hardware upgrades, software major version upgrades, software minor version upgrades (Patch) in Core network6. Formulate strategies and plans for handling extreme traffic peaks of emergency situations, special events and seasonal demands 7. Formulate and Develop Disaster recovery plans for Core network nodes and services and Executed Disaster recovery drills of Core network nodes8. Perform technical feasibility studies on potential new services & features of Core Network9. Implement new features, services and products in Core network10. Implemented telco security standards, telco security frameworks & telco security guidelines in core network 11. Provide technical liaison to Telecommunications Regulatory Commission-Sri Lanka, local & international telecommunication operator’s, roaming partners, transit operator’s, gateway operator’s requests and requirements 12. Alignment and maintenance of core network systems, processes & procedures according to ISO standards13. Implementation of International Roaming agreements of 2G roaming, GPRS roaming, 4G Roaming, VoLTE roaming and 5G roaming14. Development and operationalization of service testing strategies and plans for Mobile Voice core network, Packet core network, Enterprise voice core network and Roaming network 15. QoS and performance analysis and optimization of QoS and performance of Core network16. Identification of capacity limitations, requirements and enhancement of capacity of core network17. Development of tools, automation and digitization of tasks, processes, functions in Core network domain Show less

  • Chief Manager - Telco Security

    Dec 2021 - now

  • Chief Manager - Core Network Operations

    Oct 2003 - Nov 2021