Blockchain-based asset tracking system with Web3 authentication and smart contracts.

• Implemented Web3Auth for decentralized authentication
• Developed smart contracts for asset tracking
• Built responsive frontend with Next.js
• Mentored 3 junior developers

Enterprise payroll management system serving Australian companies as third-party provider.

• Led full-stack development using Angular and Quarkus
• Implemented Leave, Portal, and Paymotion modules
• Introduced private NPM Artifactory and modularized frontend by packaging into separate NPM packages
• Set up AWS CodePipeline and successfully migrated the codebase from GitHub to AWS CodeCommit, improving CI/CD efficiency
• Mentored 2 junior developers

Enterprise travel booking system built on top of CodeGen TravelBox product for flight reservations and management.

• Modified the desktop application according to client requirements
• Troubleshot payment issues to ensure smooth transactions
• Added new reports using JasperReports
• Integrated with TravelBox product architecture

Multi-location food delivery application with inventory management and reporting capabilities.

• Developed food delivery backend using Spring Boot and Kotlin
• Created inventory management system for multiple locations
• Built comprehensive reporting modules for business analytics
• Implemented unit tests with JUnit for code quality
• Deployed microservices on AWS Fargate for scalability

Web solution for financial institutes & organizations to validate NICs of customers, developed for Department for Registration of Persons (DRP).

• Worked as backend developer using Spring Boot for API implementations
• Involved in deployment process on Lanka Government Cloud (LGC)
• Configured Jenkins CI/CD pipeline for deployment
• Deployed application in Kubernetes cluster

Maintenance of online vehicle revenue license service maintained by ICTA.

• Closely monitored systems and performed necessary developments
• Fixed system slowness issues and performance bottlenecks
• Scaled application by adding new servers
• Handled maintenance activities and configurations

Technical support and collaboration for ERL2 developments with outside vendor.

• Provided technical support to outside vendor developers
• Leveraged domain knowledge for system collaboration
• Worked collaboratively with external development teams
• Guided architecture decisions based on existing system knowledge

Mobile solution for Covid-19 details, developed for Ministry of Health during second Covid wave.

• Implemented all requirements for second phase development
• Used Flutter framework for cross-platform mobile development
• Developed Covid-19 information and tracking features
• Collaborated with Ministry of Health for requirement gathering

Configuration and setup of Zabbix monitoring tool for Lanka Government Cloud infrastructure monitoring.

• Configured Zabbix monitoring for LGC infrastructure
• Set up monitoring dashboards and alerts
• Implemented infrastructure health monitoring
• Ensured reliable monitoring of government cloud services

Digital marketing platform where vendors can register and publish their campaigns.

• Worked on API development using Spring Boot
• Implemented brand section and profile management
• Developed campaigns section and merchant management
• Built event management section functionality

AI-based application for classifying web page images and reproducing HTML content.

• Research and development of suitable algorithms and models
• Implemented machine learning models using Keras
• Developed Python scripts for dummy image generation
• Automated image processing workflows

Gaming platform with tournament management and scoring system.

• Worked on Spring Boot backend API development
• Implemented tournament expiration management
• Developed score saving and tracking system
• Built game subscription functionality

Mobile application reimplemented from Android to Flutter for cross-platform support.

• Developed UIs for mobile application
• Integrated mobile app with backend APIs
• Migrated from Android to Flutter framework
• Enabled support for both Android and iOS devices

Instagram-like chat application with real-time messaging capabilities.

• Worked as backend developer on chat functionality
• Implemented user registration and authentication
• Developed post saving and retrieval system
• Used WebSockets for real-time post receiving

Wedding gift management system where couples register preferences and invitees purchase gifts.

• Worked on backend development and APIs
• Implemented image uploading to S3 bucket
• Developed couple registration process
• Built gift selection and purchase workflow