As an Infrastructure Manager, I led the strategic overhaul and security enhancement of network infrastructures across nine locations in six countries, directly supporting over 700 employees within a leading international exhibition and publishing company.Key Achievements:• Fortinet Firewall Deployment: Spearheaded the global rollout of Fortinet firewalls, significantly strengthening security across all company locations.• Zscaler Implementation: Led the deployment of Secure Access Service Edge (SASE) solutions to safeguard mobile endpoints, enhancing remote user security.• Microsoft 365 Security Enhancement: Implemented comprehensive Microsoft security measures, including Privileged Identity Management, Microsoft Defender for Endpoint, Cloud App Security, and Advanced Threat Protection.• Cybersecurity Optimization: Deployed Cymulate breach and attack simulator to assess and enhance the organization’s cybersecurity defenses.• Azure Cloud Migration: Orchestrated the migration of on-premises servers to Azure cloud infrastructure, optimizing operational efficiency and system resilience.• Web Application Firewall Integration: Implemented Web Application Firewalls (Imperva/Cloudflare) to protect approximately 80 websites, fortifying the company’s web infrastructure against cyber threats.• Microsoft Teams Implementation: Led the company-wide adoption of Microsoft Teams with direct routing, transitioning from traditional telephony to a unified VOIP system.• Azure AD Single Sign-On (SSO) Integration: Implemented Azure AD SSO for all corporate web applications, streamlining access and user account provisioning securely.• Azure Sentinel Deployment: Directed the implementation of Azure Sentinel, enhancing organizational intelligence and threat visibility.• Vendor Management: Manage vendor partnerships and agreements to guarantee the provision of high-quality IT services.

In this role, I managed network infrastructure and security operations across six locations in four countries, ensuring high availability and security standards for a robust IT environment.Key Achievements:• Server Management and Maintenance: Managed over 50 servers across the UAE, UK, India, and South Africa, maintaining essential infrastructure integrity.• VPN Network Optimization: Ensured 99% uptime for site-to-site VPN connectivity across all international locations, optimizing network reliability.• High Availability Solutions: Configured and maintained VMware vSphere infrastructure to facilitate server high availability and failover capabilities, enhancing system resilience.• Disaster Recovery (DR) Planning: Spearheaded business continuity strategies by replicating critical servers to the disaster recovery site, mitigating the risk of single points of failure.• Security Enhancement: Maintained high security standards by using Nexpose for comprehensive vulnerability management, from discovery through mitigation.• Web Application Firewall Management: Managed the Incapsula Firewall to protect company web applications, ensuring robust cyber defenses.• Cloud Infrastructure Management: Oversaw over 50 websites hosted on Rackspace private cloud servers, ensuring optimal performance and security.• Microsoft Office 365 Deployment: Implemented Microsoft Office 365 Exchange Online and associated productivity tools to enhance enterprise communication and collaboration.• Data Backup Solutions: Managed data backup processes using Veeam and Symantec, securing file servers to tape libraries for reliable data recovery.• Unified Communications Setup: Implemented Cisco Unified Communications Manager to streamline enterprise communications.• Data Loss Prevention: Implemented McAfee policies to prevent data leakage, securing sensitive corporate data.

Chinesedragoncafe (Pvt) Ltd is one of the leading restaurant chains operating in five major cities in Sri Lanka. As an IT Manager i had the challenging role in implementing a centralized IT system which integrates all five branches and also a centralized call center for customer ordering. My key achievements in this role were• Implementation of two mirroring Servers which can fail over upon Hardware failure. This was achieved by virtualizing the servers with VMware Esxi Fault tolerance.• Implementation of a VPN (Virtual Private Network) solution which can interconnect all five branches with the Head office.• Implementation of a centralized software solution which can integrate all sales data from the branches to the Head office through the VPN.• Implementation of a backup VPN that can fail over automatically in case the primary goes down.• Migration of the old system to the centralized system.• Implementation of a centralized call center for customers where the customer orders will directly print from the call center to the relevant branch.• Implementation of a website with the integration of an online customer ordering system with payment gateway.• Configure and install Windows server operating systems on all branches and linking them all through the VPN.• Implementation of a centralized Antivirus server to manage all the branches from the Head Office.• Implementation of an Intranet site for the employees.

Eureka Technology Partners is one of the leading offshore IT outsourcing providers in Sri Lankamanaging customers over five countries delivering a comprehensive list of services such as Information security audits, Penetration testing, Network management and Monitoring, Help Desk support and Data recovery and Management. As a System Administrator i had the following responsibilities in managing corporate customers in US and UK.• Deploying and Managing Windows Servers and Desktops.• Troubleshoot windows desktops.• Analyzing System logs and identifying potential issues with computer systems.• Perform routine audits of system and software.• Applying operating system updates, patches and configuration changes.• Configuration of Edge routers and VPN.• Enterprise network maintenance• Coordinating with Service providers and Vendors to restore services.• Maintaining Documentation of Customer network configurations and Architecture.

Siedles (Pvt) Ltd is the Sole Agent for Sony products in Sri Lanka. Siedles has a network ofEighty computers and 3 Servers and i was appointed as a Network Administrator to manage their Information Technology requirements. My key responsibilities in this role were• Assisting in the planning,designing and implementing various systems including Servers,Desktops,Networking equipment and Softwares.• Desktop and Server repairs• Monitor and maintain the use of Printers and Photocopiers.• Develop,Maintain procedures for Server Backups.• Keeping inventory of Hardware and maintenance records.• Network Maintenance.• Oversee network and server configuration maintenance and management.• Active Directory Administration• Coordinate with the Accounts division and report software errors to the relevant vendors.• Coordinate with Service providers and restore services with minimum down time.