Sithambaranathan Umachandran
Dubai
Summary
Seasoned IT Infrastructure and Network Administrator with 18 years of experience in enterprise IT systems and network security. Leads IT operations, managing multi-site environments and cloud platforms while optimizing IT systems to align with business objectives. Pursuing MSc in Network & Cloud Security to deepen expertise in modern architectures and threat management.
Overview
22
22
years of professional experience
Work History
Senior Network Administrator / IT In-Charge
Zener Fire & Security
Dubai
07.2010 - Current
- Lead IT operations for a 200+ user environment across multiple project sites
- Managed Active Directory, Microsoft 365, Azure cloud services to ensure seamless user access and collaboration
- Design and maintain secure network infrastructure using SonicWall firewalls and VPNs
- Oversaw server environments including Windows Server, Hyper-V, storage systems to maintain optimal performance and reliability
- Implement backup and disaster recovery solutions using Veeam and cloud platforms
- Support ERP system implementation and optimize system performance post-deployment
- Manage IT security policies, user access controls, and endpoint protection
- Coordinated with vendors and internal teams for IT projects and upgrades, ensuring timely delivery and alignment with business objectives
- Key Achievements: Successfully implemented VPN connectivity for remote project sites; Led ERP system go-live and infrastructure upgrade; Improved backup reliability through cloud integration; Standardized IT processes and reduced downtime
Senior Network / System Administrator
ITSTHE1 Solution
Dubai Media City
06.2009 - 05.2010
- Designed and deployed enterprise network solutions and VPN systems
- Managed IT infrastructure across diverse client environments to ensure seamless operations
- Delivered system integration and IT support services, enhancing client system reliability
- Coordinated operations for multiple clients, driving successful technical project execution
- Configured IPTV broadcasting solutions
Senior Network / System Administrator
Xenon Media
Dubai Media City
02.2009 - 05.2009
- Managed client IT systems and provided network support to ensure optimal performance
- Implemented VPN solutions, enhancing secure connectivity for remote users
- Supported teams in delivering projects on schedule and maintaining client operations
Network / System Administrator
United Foods (PSC)
Dubai
05.2008 - 01.2009
- Implemented and managed network infrastructure and security systems to ensure reliable connectivity and data protection
- Configured Windows Server 2003 domain environment to support organizational user access and resource management
- Managed mail server (MDaemon) and firewall (SonicWall) to maintain secure and efficient communication channels
- Administered routers, switches, and wireless networks
Network Administrator
Barclays Trading (Pvt.) Ltd
Colombo
02.2006 - 03.2008
- Delivered technical support and managed network administration to ensure optimal performance
- Installed and configured servers and IT systems to enhance operational efficiency
- Administered network infrastructure to ensure optimal connectivity and performance.
- Monitored network security protocols to safeguard sensitive trading data.
- Configured routers and switches to enhance network communication efficiency.
Computer Technician
Marbeni Traders (Pvt.) Ltd
Colombo
03.2004 - 08.2006
- Assembled and repaired computer systems to ensure optimal performance and reliability
- Installed and configured software and operating systems to meet user requirements and enhance functionality
- Performed data migration and system upgrades to improve system capabilities and ensure data integrity
Education
Advanced Diploma -
Hardware & Network Engineering
08-2003
GCE Advanced Level - Business Studies, Economics, Accounting
Commerce Stream
08-2002
Skills
- Network & Infrastructure Management
- Servers & Firewall Administration
- VPN & Remote Access Solutions
- Network security
- Cloud platforms
- Cloud services
- Virtualization (Hyper-V, VMware)
- Virtualization and storage
- Backup and recovery
- Backup solutions
- Troubleshooting & Performance Optimization
- IT Strategy & Systems Integration
- Operating systems
- Networking protocols
Languages
- English (Fluent)
- Tamil (Fluent)
- Sinhala (Fluent)
Personal Information
- Date of Birth: 05/09/81
- Nationality: Sri Lankan
Professional Development And Interests
- Pursuing MSc in Network & Cloud Security
- Interest in Cybersecurity, Cloud Architecture, and AI in IT Operations
- Continuous learning in Microsoft Azure and modern IT infrastructure
Disclaimer
I hereby declare that the above information is true and accurate to the best of my knowledge.
Timeline
Senior Network Administrator / IT In-Charge
Zener Fire & Security
07.2010 - Current
Senior Network / System Administrator
ITSTHE1 Solution
06.2009 - 05.2010
Senior Network / System Administrator
Xenon Media
02.2009 - 05.2009
Network / System Administrator
United Foods (PSC)
05.2008 - 01.2009
Network Administrator
Barclays Trading (Pvt.) Ltd
02.2006 - 03.2008
Computer Technician
Marbeni Traders (Pvt.) Ltd
03.2004 - 08.2006
Advanced Diploma -
Hardware & Network Engineering
GCE Advanced Level - Business Studies, Economics, Accounting
Commerce Stream