Chamara Samaranayake

Experience

• 

  Mobitel (Pvt) Ltd

  Jan 2013 - now

  ◆ Managing and maintaining Rancher Kubernetes clusters ensuring high availability and scalability of applications.◆ Creating CI/CD pipelines for JBoss and Rancher deployments.◆ Managing and maintaining BitBucket SCM system.◆ Installing and configuring JBoss EAP instances according to the organization's requirements.◆ Managing the deployment of applications onto the JBoss server, managing application lifecycle, and ensuring smooth operations.◆ Monitoring system metrics such as CPU and memory usage, thread pools, and connection pools of JBoss EAP systems.◆ Ensuring high availability and failover capabilities through clustering, load balancing, and failover configurations.◆ Implementing backup and disaster recovery procedures.◆ Troubleshooting production issues by analyzing log files, diagnosing network issues, and investigating configuration errors.◆ Planning and executing patch management activities and coordinating software upgrades.◆ Monitoring system health and performance tuning.◆ Collaborating with development and operations teams to streamline workflows and improve system reliability. Show less ◆ Performed Windows Server maintenance, ensuring optimal system performance and security.◆ Managed and optimized MSSQL databases, including performance tuning, backup strategies, and data integrity.◆ Apply patches and software upgrades to comply with company security policies and periodically published vulnerability reports for each application systems.◆ Plan, evaluate, procure, implement, and commission and support implementation of new hardware inclusive of servers, enterprise storages, signaling gateways and network devices, software platforms for new contact center systems.◆ Provide L3 support for company and enterprise customers and actively engage in resolving issues in application and network ecosystem along with other teams.◆ Developed PowerShell scripts to automate administrative tasks, streamline deployments, and enhance operational efficiency.◆ Continuous health monitoring of systems and integrations of all enterprise applications and notify SLA violations to take actions for immediate correction and apply improvements.◆ Experience in contact center service management and workforce management tools.◆ Expertise in Mitel Contact center and Mi Contact Center Platforms and user Access Management framework to ensure identity and access governance within the organization.◆ Compose instruction sheets, guidelines, best practices, and operational manuals to be used while attending routine operational activities by the subordinates to maintain predefined standards and SLAs.◆ Manage product vendors, local and principal support partners, system integrators to ensure lesser values of time to market.◆ Implemented and maintained MQTT protocols for efficient and lightweight message communication.◆ Queue management platform monitoring and system design and customization. Show less ◆ Involved in designing IT Voice systems, VAS applications, IVR scripting in perspective of hardware deployment, database installation and configuration, network configurations.◆ Managed and maintained the PABX system, ensuring seamless communication within the organization.◆ Configured, monitored, and troubleshot PABX hardware and software to optimize performance and reliability.◆ Integrated VoIP solutions with the PABX system to enhance telephony capabilities.◆ Provided L2/L3 support for PABX-related issues, resolving call routing, connectivity, and system performance problems.◆ Research on open-source tools to continuously monitor and improve performance of voice and Call center systems applications.◆ Maintain latest and stable versions of operating systems, database software and other third-party software stacks.◆ Implementing, and commissioning servers, switches, and appliances within the datacenter.◆ Use native tools like IVR scripting to automate tasks such as system performance monitoring and alarming, report generation for audit purposes and business needs, provisioning configurations faster, etc.◆ Monitoring health and performance of all voice and call center IT systems functionalities inclusive of hardware and monitor license utilization of voice gateways and other third- party protocol or software stacks. Show less

  • Associate Architect

    Jan 2023 - now

  • Senior Systems Engineer

    Jan 2017 - Jan 2023

  • Systems Engineer

    Jan 2013 - Jan 2017