R.d. Tharaka Madushan Ranathunga

About

Highly accomplished and goal-oriented Senior System Administrator with over 8 years of progressive experience in system administration, network security, and IT operations. Proven expertise in managing complex IT infrastructures, implementing robust security protocols, and optimizing system performance. Possessing extensive certifications in leading cloud platforms (OCI, Azure, AWS) and cybersecurity, I am adept at leveraging cutting-edge technology to drive organizational efficiency and safeguard critical assets, seeking to contribute to an innovative IT environment.

Work Experience

Senior Executive, System Administration

SIYAPATHA FINANCE PLC

Apr 2023 - Jun 2024

Colombo, Western Province, LK

Led comprehensive system administration functions, encompassing operating system management, network security, technical support, and disaster recovery planning to ensure robust IT infrastructure.

Managed the full lifecycle of operating systems and software, ensuring optimal performance and stability for critical business operations.
Configured and maintained network equipment and implemented robust security measures, enhancing network integrity and data protection against evolving threats.
Delivered expert technical support, resolving complex end-user issues promptly to minimize downtime and maintain high levels of productivity.
Developed and enforced security protocols, safeguarding critical IT systems and sensitive data against cyber threats and ensuring confidentiality.
Orchestrated regular data backups and formulated comprehensive disaster recovery plans, ensuring business continuity and data resilience during unforeseen events.
Proactively monitored system performance and troubleshooted issues, optimizing operational efficiency and preventing outages across the IT landscape.

Executive, Networking & IT Operations

LB FINANCE PLC

Apr 2021 - Mar 2023

Colombo, Western Province, LK

Oversaw network and IT operations, providing critical technical support, system maintenance, and hardware/software troubleshooting to ensure seamless business functionality.

Maintained high availability of computer systems, optimizing performance to maximize user productivity and operational efficiency.
Installed and configured diverse computer hardware, operating systems, and applications, ensuring seamless integration and functionality for over 100 users.
Provided multi-channel technical support (in-person, phone, remote desktop), resolving system and network issues for staff and clients, improving system uptime by 15%.
Diagnosed and resolved complex hardware and software faults across systems and networks, reducing mean time to resolution by 20%.
Managed user accounts and profiles, including password resets, ensuring secure and efficient access for all personnel.
Responded to IT service requests within defined SLAs, maintaining high levels of user satisfaction and minimizing operational disruptions.

Technical Officer - All in One Support (AIOS)

METROPOLITAN OFFICE (PVT.) LTD

Nov 2016 - Apr 2021

Colombo, Western Province, LK

Provided comprehensive technical support for a wide range of Canon products, Acer laptops, and Micromax mobile phones, and managed critical printing operations for governmental documents.

Completed specialized training on Canon DreamLabo 5000 Series at CANON SINGAPORE PTE., enhancing expertise in advanced printing technology and support.
Managed all technical and network-related issues for a wide range of Canon products, including copiers, faxes, printers, and production machinery, ensuring continuous operation and minimal downtime.
Provided comprehensive technical support for Acer Laptops and Micromax Mobile Phones, resolving hardware and software issues for end-users.
Served as a technical officer for printing the annual budget statement for the Parliament of Sri Lanka, ensuring timely and accurate delivery of critical documents.
Contributed as a technical officer to the printing of high-stakes academic materials (O/Ls, A/Ls, semester papers) using the Oce ColorStream 3900 printer for the examination department.

Education

Computing

Wrexham Glyndŵr University

Second-class lower division

Sep 2015 - Jun 2018

Wrexham, Wales, UK

Courses

21st-Century Computing
Network Management
IT Project Management
Distributed Data
Final Project

General Studies

Sri Rahula Maha Vidyalaya. Angoda

Z score .7139

Jan 2016 - Dec 2016

Angoda, Western Province, LK

Courses

Political Science
Buddhist Civilization
General English
Sinhala

Computer System Engineering

Londontec City Campus

Sep 2013 - Aug 2015

Colombo, Western Province, LK

Courses

Techniques and Concepts of Programming
Networking Technologies
Professional Development
Database Management
Managing of Security
IT Project Management
Intelligent Systems
Algorithms in Programming
Cloud Computing
Security in Networks
System Development with SDLC
Basics in Computing
Computing Mathematics
Advanced Concepts in Programming
Practical Computing Project

Network Administration

Vocational Training Center (Dehiwala)

Jan 2012 - Dec 2013

Dehiwala, Western Province, LK

Courses

Introduction to Network Devices
Network Troubleshooting
Common Network Issues
Common Network Security Issues
Common WAN Components and Issues
The OSI Networking Reference Model
The Transport Layer Plus ICMP
Basic Network Concepts
Network Cabling
Introduction to Wireless Network Standards
Introduction to Wired Network Standards
Server Administration

Hardware Engineering

Esoft Metro Campus (Colombo 04)

Jan 2011 - Dec 2012

Colombo, Western Province, LK

Courses

Identification & Installation of Computer Parts & Peripherals
Assembling PCs and System Configuration (Core i3, i5, i7, i9)
Installation & Troubleshooting of Client Operating Systems - Microsoft Windows 10
Software Installation & Troubleshooting
Chip Level Repairing of Components (Motherboard)
Software Installation and Upgrading
Troubleshooting
Repairing and Servicing of Laptops
Structured Cabling (Network Cabling)

English

ESOFT Metro Campus (Battaramulla)

Jan 2010 - Dec 2010

Battaramulla, Western Province, LK

Courses

English in Real Life Situations (Telephone Etiquette, Railway Station, Hotel Booking)
Sentence Patterns
Role-Plays
Group Discussions
Listening & Speaking
Language Games
Debates

Hotel Operations

Swiss Lanka Hotel School

Jan 2009 - Dec 2009

Colombo, Western Province, LK

Courses

Introduction to Hotel Operations
Food & Beverage
International Cookery and Culinary Arts
Front Office Operations and Services
Accommodation Operations and Services
Computer Technology

General Studies

Ediriweera Sarachchandra Vidyalaya. Himbutana

Jan 2001 - Dec 2001

Himbutana, Western Province, LK

Courses

Sinhala
English
Mathematics
Science
History
Civilization
Religion
IT
Art

Volunteer

Member

Young Entrepreneurs Club (Lontontec City Campus)

Jan 2020 - Jun 2024

Colombo, Western Province, LK

Engaged with the Young Entrepreneurs Club, fostering entrepreneurial skills and participating in business-oriented initiatives.

Contributed to entrepreneurial projects and discussions, developing business acumen.
Networked with peers and mentors, expanding knowledge in startup and business development.

Committee Member

Automobile Club (AAC)

Jan 2018 - Jun 2024

Colombo, Western Province, LK

Actively contributed to the Automobile Club, participating in and organizing various automotive-related events and initiatives.

Participated in the planning and execution of club events and activities.
Supported community engagement and skill-sharing among members.

Organizing Committee Member

Vocational Training Center – Dehiwala

Jan 2019 - Dec 2019

Dehiwala, Western Province, LK

Contributed to the successful organization of the 'in Medica 2019' Health Exhibition, managing logistics and event coordination.

Coordinated logistics and activities for the 'in Medica 2019' Health Exhibition, contributing to community health awareness.
Collaborated with team members to ensure smooth execution of event initiatives and stakeholder engagement.

Organizing Committee Member

Vocational Training Center

Jan 2018 - Dec 2018

Moratuwa, Western Province, LK

Participated in the organizing committee for the 'Serving Hearts' project, focusing on the renovation of De Soysa District Hospital.

Assisted in planning and executing the 'Serving Hearts' project to renovate De Soysa District Hospital, improving patient facilities.
Managed resources and coordinated volunteer efforts to achieve project objectives.

Treasurer & Drama Coordinator

Edireweera Sarachchandra Vidyalaya - Himbutana

Jan 2008 - Dec 2010

Himbutana, Western Province, LK

Held leadership roles within the Sinhala Literary & Debating Society, managing finances and coordinating drama activities.

Served as Treasurer in 2010, managing society funds and financial records.
Coordinated drama productions in 2009, overseeing rehearsals and performances.
Acted as Committee Member from 2008, contributing to overall society activities and events.

Certificates

OCI Certified Generative AI Professional

Oracle Cloud Infrastructure (OCI)

Jan 2024

Chronicle Certified SOAR Analyst (CCSA)

Chronicle Security

Jan 2023

Chronicle SOAR Fundamentals V6 (CSFv6)

Chronicle Security

Jan 2023

Google Chronicle Fundamentals (SIEM)

Google

Jan 2023

EC-Council Network Defense Essentials (NDE)

EC-Council

Jan 2023

EC-Council Ethical Hacking Essentials (EHE)

EC-Council

Jan 2023

arcX Cyber Threat Intelligence

arcX

Jan 2023

OCI Certified Multicloud Architect Associate

Oracle Cloud Infrastructure (OCI)

Jan 2023

Oracle Apex Cloud Developer Professional

Oracle

Jan 2023

Azure Security Fundamentals (SC-900)

Microsoft

Jan 2023

Azure AI Fundamentals (AI-900)

Microsoft

Jan 2023

Azure Data Fundamentals (AZ-900)

Microsoft

Jan 2023

Microsoft Certified Solutions Associate (MCSA)

Microsoft

Jan 2023

Microsoft Certified: Azure Fundamentals (AZ-900)

Microsoft

Jan 2023

Microsoft Certified Solutions Expert: Core Infrastructure (MCSE)

Microsoft

Jan 2023

ICSI | CNSS Certified Network Security Specialist

ICSI

Jan 2023

AWS Security Fundamentals

Amazon Web Services (AWS)

Jan 2023

NSE | Network Security Associate

Fortinet

Jan 2023

Aviatrix Certified Engineer - Multi-Cloud Network Associate

Aviatrix

Jan 2023

Microsoft Certified: Azure Administrator Associate (AZ-104)

Microsoft

Jan 2023

OCI Certified Operations Associate

Oracle Cloud Infrastructure (OCI)

Jan 2022

OCI Certified Architect Professional

Oracle Cloud Infrastructure (OCI)

Jan 2021

OCI Certified Architect Associate

Oracle Cloud Infrastructure (OCI)

Jan 2021

OCI Foundation Associate

Oracle Cloud Infrastructure (OCI)

Jan 2021

Oracle Cloud Platform Identity and Security Management Specialist

Oracle Cloud Infrastructure (OCI)

Jan 2021

Languages

Sinhala , English

Skills

System Administration

Operating System Management
Software Installation & Configuration
System Monitoring
Troubleshooting
Performance Optimization
IT Documentation
Compliance Management
Server Administration

Network Management

Network Equipment Configuration
Network Security
Network Troubleshooting
Network Cabling
WAN/LAN Management
OSI Model
Wireless Network Standards
Network Devices

Cybersecurity

Security Protocols
Disaster Recovery Planning
Data Backup Management
SIEM (Security Information and Event Management)
SOAR (Security Orchestration, Automation, and Response)
Cyber Threat Intelligence
Network Defense
Ethical Hacking Essentials
Network Security Specialist

Cloud Computing

Oracle Cloud Infrastructure (OCI)
Microsoft Azure
Amazon Web Services (AWS)
Multi-Cloud Network Architecture
Cloud Security
Cloud AI
Cloud Data Management
Cloud Platform Identity & Security Management

Technical Support

End-User Support
Hardware/Software Fault Diagnosis
Remote Desktop Support
Application Roll-out
User Account Management
SLA Adherence
Problem Resolution

Hardware & Infrastructure

Computer Hardware Installation
Component Repair (Motherboard, Laptops)
Structured Cabling
Electrical Safety Checks
PC Assembly & Configuration
Client Operating Systems (Windows 10)

Printing Technology

Canon DreamLabo 5000 Series
Oce ColorStream 3900
Copier/Fax/Printer Support
Production Machine Management

Project Management

IT Project Management
SDLC (System Development Life Cycle)
Team Collaboration
Stakeholder Management

Interests

Automotive

Automobile Club

Entrepreneurship

Young Entrepreneurs Club

Cricket

U-12 Cricket
U-14 Cricket
Team Sports

Literary & Debating

Sinhala Literary Society
Debating
Drama Coordination

References

Mr. Gayan Abeygunawardhana

Senior Consultant and CEO at NextGen Campus, Tel: 0777225180

Mr. Ishara Dilhan Batuwita

National Manager - Security and Governance at LB Finance, Colombo 03, Tel: 0779631519

Mr. Chamara Nandika Perera

Consultant Trainer and Senior Lecturer at VTC Dehiwala, Tel: 0777911113

About

Work Experience

Education

Volunteer

Certificates

Languages

Skills

Interests

References