Mobile application
A Flutter application for creating and sharing digital yearbooks and memories in real time.
Read about the projectFull stack developer & entrepreneur · Sri Lanka
I’m Oshan Rasanjana, a Flutter and full stack developer from Sri Lanka. I turn ambitious ideas into websites and mobile apps that feel simple, useful, and human.
01 / Selected work
A collection of applications and experiments — each one an opportunity to make technology a little more useful.
Mobile application
A Flutter application for creating and sharing digital yearbooks and memories in real time.
Read about the projectWebsite
The second version of my personal portfolio, built with React, Tailwind CSS, and Framer Motion.
Read about the projectWebsite
A landing page for the Yearbook app, built with React, Tailwind CSS, and Framer Motion.
Read about the projectMobile application
A Flutter application that helps users create marketing campaigns and creative assets with AI.
Read about the projectMobile application
A task management application inspired by The 7 Habits of Highly Effective People and Atomic Habits.
Read about the projectWebsite
A showcase website for the Dream Technologies website development agency.
Read about the projectWebsite
The first version of my personal portfolio, built with HTML, CSS, and JavaScript.
Read about the projectMobile application
An AI chat application that integrates conversational AI models.
Read about the projectMobile application
An encryption and decryption application with on-device processing.
Read about the projectMobile application
An application for browsing and downloading high-quality stock images.
Read about the projectShowing all 14 projects
02 / The person behind the pixels
I care about what happens on the other side of the screen.
I’m a developer and entrepreneur based in Colombo, Sri Lanka. I build cross-platform applications with Flutter and React Native, work with TypeScript, Kotlin, Java, and Python, and design interfaces with Figma and Lunacy.
Alongside development, I build ventures including Yearbook Inc, Dream Technologies, and Toreno. I’m pursuing Computer Science studies and share development tutorials and insights through social media.
A closer look at my code
Always learning, always building
Started exploring technology and how it works.
Began programming and bringing ideas to life.
Started building mobile experiences with Flutter.
Creating useful experiences for web and mobile.
03 / Business ventures
Beyond client work, I bring a founder’s perspective through Yearbook Inc, Dream Technologies, and Toreno.

Founder & CEO · 2025–present
A digital yearbook platform for students and individuals to journal their memories, and an adventure brand encouraging people to live more.
Visit Yearbook Inc
Founder & CTO · 2022–present
A technology company creating tools and applications to make everyday life easier, with website and application development services.
Visit Dream Technologies
Founder · 2025–present
A clothing brand for car enthusiasts, with a Shopify store.
Visit Toreno04 / Capabilities & toolkit
Technology serves the idea. I work across interfaces, application logic, and the services that connect them.
Clear, responsive websites with careful attention to layout, usability, and the little interactions.
Flutter and native app development that connects useful functionality with a thoughtful interface.
Cloud services, data, and integrations that support the experience behind the scenes.
05 / How I approach a project
Get clear on the people, the problem, and what the product needs to achieve.
Turn the idea into a focused experience, with a clear structure and visual direction.
Develop, test, and refine the details that make the final experience feel right.
06 / A little more clarity
Oshan Rasanjana is a full stack developer and entrepreneur who builds websites and mobile applications. His toolkit includes Flutter, React Native, TypeScript, JavaScript, Kotlin, Java, Python, and Firebase.
Oshan is based in Colombo, Sri Lanka.
Oshan is Founder & CEO of Yearbook Inc, Founder & CTO of Dream Technologies, and Founder of Toreno.
Email [email protected] or use the contact form below. Share what you want to build and the problem it should solve.
07 / Your next idea starts here
Have a project in mind, a question, or just a good idea? Tell me a little about it.
[email protected]