Sivadarshan Sivarasa
Technical Specialist
Colombo
Summary
I am an enthusiastic, hands-on IT professional with more than 16 years’ experience in support (Windows System). I have a proven track record of managing and maintaining servers and desktops in LAN/WAN, WiFi network infrastructures, and adopt a meticulous approach to ensure the smooth - running of business operations. I enjoy closely following the latest changes in technology and this to duties wherever relevant.
Overview
18
18
years of professional experience
15
15
years of post-secondary education
7
7
Certificates
Work History
Technical Specialist
HCLTech Sri Lanka
Colombo
04.2022 - Current
- Investigated system problems and put fixes in place to lessen downtime.
- Improved systems with addition of new features and infrastructure.
- Configured and tested Windows Server operating systems with roles features.
- Delivered Level 2 and Level 3 support for problem identification, diagnosis and issue resolution.
- Contributed to development, administration and testing of disaster recovery plans.
- Resolved issues and escalated problems with knowledgeable support and quality service.
- Implemented, developed and tested installation and update of file servers, print servers and application servers.
- Devised scripts and automation tools to improve system efficiency.
- Installed and configured network printers and other peripheral devices.
- Maintained flexible schedule and responded to after-hours and weekend emergencies.
Senior Specialist
HCLTech Sri Lanka
Colombo
03.2021 - 03.2022
- Attended meetings to deliver status reports to key stakeholders.
- Delivered Level 2 support for problem identification, diagnosis and issue resolution.
- Performed software installations and upgrades to Windows operating systems.
- Conducted routine and emergency maintenance of assigned data center equipment.
- Configured and tested Windows Server operating systems with roles features.
- Contributed to development, administration and testing of disaster recovery plans.
- Researched and recommended new technologies and strategies for improving system performance.
- Implemented, developed and tested installation and update of file servers, print servers and application servers.
- Resolved issues and escalated problems with knowledgeable support and quality service.
- Installed and configured network printers and other peripheral devices.
- Diagnosed and resolved hardware and software issues.
- Maintained flexible schedule and responded to after-hours and weekend emergencies.
- Devised scripts and automation tools to improve system efficiency.
System Administrator
Cambridge Traders
Colombo
06.2010 - 02.2021
- Designed proactive preventive maintenance schedules to prevent unnecessary downtime and hardware faults.
- Installed important security and functionality patches to maintain optimal protections against intrusion and system reliability.
- Established network specifications and analyzed workflow, access, information and security requirements.
- Adopted cost-effective, useful solutions to implement into current systems.
- Worked with users to determine areas of technology in need of improved usability.
- Introduced management tools to create and manage virtual server computing environment.
- Performed software installations and upgrades to Windows operating systems.
- Created nightly jobs for database backups.
- Configured and tested Windows Server operating systems with roles features.
- Delivered Tier 2 and Tier 3 support for problem identification, diagnosis and issue resolution.
WiFi Administrator
ComSec Management Services (PTE) Limited
Colombo
09.2008 - 05.2010
- Installing and configuring Wi-Fi Network
- Provide ad-hoc support to hotel infrastructure
- Generate and send revenue report to management
- Coordinate with vendors
- Performed hands-on administration, monitoring and troubleshooting of WIFI LAN, WAN resulting in optimum performance and minimum downtime
- Provided seamless connectivity to hotel (Taj Samudra - Colombo) guest
- No negative feedback from Guest / Management
Network engineer
Microsense India Pvt Ltd
Colombo
01.2006 - 08.2008
- Installing and configuring Wi-Fi Network
- Provide ad-hoc support to hotel infrastructure
- Generate and send revenue report to management
- Coordinate with vendors
- Performed hands-on administration, monitoring and troubleshooting of WIFI LAN, WAN and DMZ, resulting in optimum performance and minimum downtime
- Provided seamless connectivity to hotel (Taj Samudra - Colombo) guest
Education
MSc - Network And Information Security
Kingston University
UK 01.2023 - Current
Diploma - Information Technology
University of Colombo School of Computing
Colombo 01.2021 - 12.2021
Advanced Level - Combined Mathematics
Colombo Hindu College - Colombo 04
Colombo 01.2002 - 08.2004
Ordinary Level -
Colombo Hindu College - Colombo 04
Colombo 01.1991 - 12.2001
Skills
Windows Servers (2003 - 2019)
Azure / GCP
ServiceNowWindows (7 - 11) OS Configuration
Firewall Configuration (Endian)WAN/LANActive DirectoryGPO ManagementDNS/DHCP
PS ScriptingData BackupVirtualization (VMWare / Hyper-V)Monitoring Tools (PRTG/SolarWinds)Remote Desktop (RDP/RealVNC/TeamViewer)MS Office (2003-2016)Certification
Microsoft Certified: Azure Security Engineer Associate
Timeline
MSc - Network And Information Security
Kingston University
01.2023 - Current
Technical Specialist
HCLTech Sri Lanka
04.2022 - Current
Senior Specialist
HCLTech Sri Lanka
03.2021 - 03.2022
Diploma - Information Technology
University of Colombo School of Computing
01.2021 - 12.2021
System Administrator
Cambridge Traders
06.2010 - 02.2021
WiFi Administrator
ComSec Management Services (PTE) Limited
09.2008 - 05.2010
Network engineer
Microsense India Pvt Ltd
01.2006 - 08.2008
Advanced Level - Combined Mathematics
Colombo Hindu College - Colombo 04
01.2002 - 08.2004
Ordinary Level -
Colombo Hindu College - Colombo 04
01.1991 - 12.2001
Referees
Provide on request