Himasha Weerasinghe

• Acting as the Technical Owner for the Merchant Scrum Team.
• Led a complete backend artifact revamp, including refactoring monolithic services into microservices.
• Designed and implemented multi-tenant backend services.
• Introduced caching mechanisms to improve performance and reduce latencies.
• Migrated legacy artifacts to Go-based services following modern standards.
• Developed POS integration endpoints and enhanced the merchant order workflow

Technologies Used: Go, Kafka, Grafana, Kibana, Kubernetes, Google Cloud, Angular, Android, MQTT

• Contributed to backend development for the Merchant Platform.
• Implemented a new feature to extend preparation time for new orders in both the merchant Android app and backend.
• Developed a feature allowing merchants to add offers for their items.
• Enhanced login functionality by integrating encryption for improved security.
• Improved token authorization by implementing caching to reduce latency and enhance performance.

Technologies Used: Go, Kafka, Grafana, Kibana, Kubernetes, Google Cloud, Angular, Android

Zilla Project
Social Media Platform with NFTs

Mobile Application

• Developed content-sharing functionality with comments and likes.
• Implemented a real-time chat feature for seamless communication.
• Designed and developed a profile management feature.
• Added a dark mode feature to enhance user experience.

Promotional Website

• Created a responsive website with a product viewing feature.
• Implemented a product sorting feature for better usability.

Technologies Used: HTML, Tailwind CSS, JavaScript, React Native, Redux, NodeJS, Express, MongoDB, GitHub

Artisto Project
Order Management System

• Led a team of 2 to implement a responsive web application.
• Developed a place order feature and a view cart functionality.
• Integrated a social login feature with Google for enhanced accessibility.
• Configured a payment feature using PayPal for secure transactions.

Technologies Used: ReactJS, Tailwind CSS, NodeJS, MongoDB, Cloudinary, PayPal, GitHub

Dute Island Project
Blockchain-based Product Management System

• Implemented a responsive web application with an item management feature.
• Developed user management functionality to handle account-related tasks.
• Created a feature to transfer product ownership securely.
• Implemented a verification feature to track and display ownership history.
• Added an alerts feature with email notifications for key updates.
• Designed and developed admin-specific features to manage the system effectively.

Technologies Used: ReactJS, Tailwind CSS, NodeJS, MongoDB, ProvenDB, SendGrid, GitHub