THILANKA YASODHANA RATHNAYAKA
Senior Technical Officer
Results-driven IT professional with 8+ years of experience in system administration, cybersecurity, and enterprise network management. Specialized in implementing secure IT solutions and leading technical operations.
ABOUT ME
BUILDING SECURE DIGITAL INFRASTRUCTURE
I'm a results-driven Senior Technical Officer with over 8 years of progressive experience in IT support, system administration, and cybersecurity. My journey in technology began as a Customer Support Technician at E-W Information Systems Ltd, where I built strong foundations in OS management, networking, and hardware repair.
Throughout my career, I've developed proven expertise in diagnosing and resolving complex hardware/software issues, managing enterprise networks, and implementing secure IT solutions. I'm passionate about cybersecurity and continuously work on strengthening data protection measures while ensuring compliance with industry standards.
Currently, I lead IT operations at E-W Information Systems Ltd, where I supervise technical teams, oversee critical infrastructure projects, and deliver IT solutions that align with business objectives. I hold a BSc (Hons) in Computer Networks & Security and multiple industry certifications from Microsoft and Cisco.
SKILLS & TECHNOLOGIES
NETWORKING
CYBERSECURITY
CLOUD & VIRTUALIZATION
OPERATING SYSTEMS
WORK EXPERIENCE
E-W Information Systems Ltd (EWIS)
• Colombo, Sri Lanka
- Lead IT operations and provide enterprise-level technical support and infrastructure management
- Supervise and mentor junior engineers and technicians to improve efficiency and service quality
- Oversee projects including advanced TV display repairs, monitor repair, smart home IoT simulations, and enterprise network upgrades
- Implement cybersecurity strategies to strengthen data protection and ensure compliance with organizational policies
E-W Information Systems Ltd (EWIS)
• Colombo, Sri Lanka
- Resolved hardware, software, and networking issues for 100+ clients, reducing downtime
- Configured and optimized enterprise routers, switches, and wireless access points
- Delivered training to end users and new hires, achieving 95% satisfaction ratings
- Contributed to cybersecurity measures and implemented system performance enhancements
E-W Information Systems Ltd (EWIS)
• Kurunegala, Sri Lanka
- Provided first-line support for hardware/software issues and basic networking troubleshooting
- Assisted in installations, maintenance, and system upgrades for client systems
- Gained strong foundations in OS management, networking, and hardware repair
FEATURED PROJECTS
AWS - Cloud Infrastructure
This project represents the AWS cloud infrastructure design and implementation for a Ministry of Justice (MOJ) web application and database system.
AWS infrastructure design and planning, ensuring security and compliance alignment, and overseeing implementation to validate that deployments meet required standards.
🪟 MS 365 Tenant Administration
Serving as the Microsoft 365 Tenant Administrator for Playpen Montessori, overseeing a secure, compliant, and license-efficient cloud environment that supports communication, collaboration, and identity management for academic and administrative users.
I serve as a Microsoft 365 Tenant Administrator, managing licenses and users, enforcing security and access controls, and providing end-user support while optimizing the tenant environment.
ROUTERS REPAIR PROJECT
Led comprehensive diagnostics, repair, and testing operations for enterprise-grade routers and switches. Implemented systematic troubleshooting protocols and quality assurance measures to ensure optimal network performance.
Restored critical network infrastructure for one of Sri Lanka's leading telecommunications providers
MONITOR REPAIR PROJECT
Executed systematic repair and restoration of defective monitors, implementing cost-effective solutions to increase IT asset reusability. Developed efficient diagnostic procedures and repair workflows.
Significantly reduced IT hardware costs by extending monitor lifecycle and improving asset utilization
DISPLAY REPAIR PROJECT
Specialized in advanced repair of LED, LCD, and Smart TV displays ranging from 32" to 65". Mastered complex display panel diagnostics, backlighting systems, and smart TV electronics troubleshooting.
Provided cost-effective repair solutions for consumer electronics, reducing replacement costs
AWARDS & CERTIFICATIONS
ISLAND 1ST PLACE
Skills Competition Organized by Tertiary & Vocational Education Commission of Sri Lanka
UPCOMING BRANCH AWARD
MICROSOFT CERTIFICATIONS
CISCO CERTIFICATIONS
IBM CERTIFICATIONS
Hack & Fix Academy
EDUCATION
BSc(Hons) Computer Networks & Security
Diploma in Information Technology
NVQ - IV in Computer Hardware Technician
GET IN TOUCH
CONTACT INFORMATION
I'm always open to discussing new opportunities, collaborations, or projects. Feel free to reach out through any of the following channels: