Dimuth Yashira

IP Networks and Services

• Monitored, troubleshooted, and rectified ISP backbone issues, ensuring network stability and reliability
• Managed and monitored data center operations, maintaining optimal performance and uptime
• Tracked and reported incident tickets, escalating them to relevant departments when necessary to ensure timely resolution
• Troubleshooted Multicast streaming networks to maintain high-quality service delivery
• Isolated and resolved faults to minimize network downtime and disruptions
• Designed and implemented Virtual Private Networks (VPNs) to ensure secure remote connectivity to corporate resources
• Developed and deployed internet-dedicated connections to enhance network performance
• Managed and optimized network firewalls, routers, and switches to ensure peak performance and reliability
• Designed, implemented, and maintained backbone nodes, switches, and data center devices to support core network infrastructure
• Planned and executed automated backup solutions and failover configurations for high availability and business continuity
• Managed DNS configurations, including DNS zone management and DNS record maintenance, ensuring reliable domain name services
• Handled upstream traffic routing through routers, optimizing traffic flow and managing upstream traffic changes
• Monitored and resolved BGP peer flapping issues, collaborating with upstream providers for swift resolution
• Maintained comprehensive network documentation, ensuring accuracy in infrastructure details, configurations, and procedures
• Allocated IP blocks for new infrastructure projects and customer solutions, ensuring efficient IP management
• Provided technical support to customers, troubleshooting network and service issues to ensure customer satisfaction
• Analyzed bandwidth usage data using monitoring tools to identify patterns and proactively address capacity or performance issues
• Configured customer login accounts in bandwidth monitoring systems, enabling real-time bandwidth usage tracking
• Routed backbone, node, and customer traffic using OSPF, BGP, and static routing protocols to optimize network efficiency
• Managed customer bandwidth upgrades and downgrades based on usage and business requirements
• Participated in on-call rotations to provide 24/7 support for critical network issues

Network Administrator

• Monitored and maintained network systems for optimal performance and uptime
• Troubleshoot and resolve LAN connectivity issues for both internal users and external clients.
• Install, configure, and maintain the organization's Local Area Network (LAN), including routers, switches, and wireless access points.
• Manage and maintain data center operations, including servers, storage, and networking equipment.
• Install, configure, and maintain network printers and multifunction devices.
• Troubleshoot printer-related issues and provide support to end-users.
• Manage and maintain the organization's Active Directory (AD) environment, including user accounts, groups, and permissions.
• Troubleshoot and resolve AD-related issues, including login problems and access control.
• Implement and manage Group Policy Objects (GPOs) to enforce security and configuration settings.
• Provide technical support to end-users for hardware, software, and network-related issues.
• Maintain an up-to-date inventory of all network devices, including PCs , Servers ,routers, switches, and printers.
• Ensure proper asset management and documentation of IT equipment.

Trainee Network Administrator

Under LankaCom - IT Admin ( Cape Weligama and Wild Coast Tented Lodge )

• Resolved advanced technical issues and network outages to minimize downtime, ensuring high system availability
• Install, configure, and maintain the hotel's Local Area Network (LAN), including routers, switches, access points, and cabling.
• Monitor network performance and ensure high availability and reliability of the LAN( Pandora ).
• Troubleshoot and resolve LAN connectivity issues for both guests and staff.
• Manage and maintain the hotel's guest Wi-Fi network, ensuring high-speed and secure connectivity.
• Implement and enforce network security measures to protect guest data and prevent unauthorized access.
• Monitor guest network usage and address any connectivity issues promptly.
• Provide technical support to hotel staff for network-related issues, including connectivity, printers, and other networked devices.
• Assist with the setup and configuration of computers, phones, and other devices connected to the LAN.
• Proactively analyzed and addressed potential network issues using monitoring tools
• Work closely with the hotel's IT team and external vendors to resolve complex network issues.
• Maintain detailed documentation of network configurations, changes, and incident reports.
• Provide regular reports on network performance, issues, and resolutions to management.