Randika Siriwardana

Managed IT infrastructure for Islamic Affairs & Charitable Activities Department (IACAD) with project support for TSD and RTA government entities. Administering Windows Server environments (2012/2016/2019/2022) including AD, DNS, DHCP, GPO, patching, and access control. Managing SCCM for OS deployment, endpoint management, patching, and compliance reporting. Implementing and maintaining VEEAM Backup & Replication for virtual and physical servers, ensuring backup integrity and disaster recovery readiness. Administering Cisco, Meraki, Juniper, and Fortinet devices, including Cisco Call Manager, UCCX, and Jabber. Optimized server and storage performance, improving system uptime and reliability. Implemented ManageEngine monitoring and MDM. Coordinated with vendors and internal teams to resolve escalated infrastructure issues.

Led IT operations and support delivery for a global enterprise client across Sri Lanka. Supervised technical support teams ensuring 24/7 IT operations. Designed and deployed LAN and Wireless networks across multiple sites. Negotiated and improved service level agreements (SLAs) with vendors. Improved customer satisfaction through faster escalation and resolution processes.

System Engineer is in ACT, hands-on operations role involving incident triage, coordinating with multiple delivery teams located in different geographical locations, driving incident resolution, conducting root cause analysis sessions, documenting major incidents and Root Causes associated with Problems, and ensuring that the action items against each Problem get tracked to completion. ● Technical support to major 24x7x365 critical data centers and leading ISP including Ericsson, Ooredoo, Omantel, Vodafone and Optiva. ● Troubleshooting and resolving hardware issues, OS and infrastructure. EMC VNX, HPE Gen7–10 Servers, HPE C7000 enclosures, Microsemi NTP, Tape loaders, CISCO and Juniper. ● 24x7 response to all Incidents, assess the impact and prioritize Incidents, enable collaboration between multiple technology teams, and provide progress updates to Leadership. ● Ensure to maintain the critical application nodes availability by minimizing service outage duration. ● Initiate the Problem Management Life cycle by conducting detailed RCA discussions, documentation, and assigning action items for permanent resolution of the problems. ● Monthly reports or records and decision making.

Provided 24/7 support for Tier-1 data centers and ISPs including Ericsson, Ooredoo, Omantel, and Vodafone. Troubleshot and resolved issues related to EMC storage, HPE servers, and Cisco & Juniper Networks. Led incident triage and root cause analysis (RCA) to prevent recurring outages. Ensured 99.9% uptime of critical infrastructure and application nodes.

Showrooms, Factory, Plantations, Marino Mall and Marino Beach Colombo. Provide technical support to employees in troubleshooting and resolving hardware and software network issues including remote supports Monitoring and and maintain LAN , WiFi , VPN CISCO based networking Licensing with external vendors for hardware warranties and support Managing IT inventory Provide support to company in-house systems Managing ERP Call center ISA AD Hyper V , Coordinate with various vendors for hardware and network related issues designing Structured cabling systems

Delivered enterprise IT support services. Installed and configured network and system solutions based on architect designs. Supported expansion of IT services across multiple client sites.

Regus Business Center - McLaren's Building Colombo 04 Regus Business Center - World Trade Centre Colombo 01 visakha Vidyalaya Colombo 04

ITE , CCNA Discovery , CCNP Route and Switch , CCNA Security

Upper Second-Class Honors