Hey! I'm Rehan Hansaja

I'm a full-stack engineer building web apps, mobile apps, and cloud-powered products.

I enjoy working across the stack, but I'm especially interested in backend engineering, AWS, system design, DevOps, and AI integration.

I learn by building and experimenting, and I care about clean code, simple interfaces, and systems that are designed to hold up beyond the demo.

This is where I share what I'm building and what I'm learning along the way.

More about me →
RProduct engineering/⌁Interfaces & systems/↗Open to collaborate

Featured Projects

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chordsync

Final-year Music Information Retrieval project that recognizes guitar chords, beats, and lyrics from audio and syncs them into an interactive Flutter practice timeline.

  • Python
  • beat-tracking
  • chord-recognition
  • fastapi
  • flutter
  • machine-learning

online-event-ticket-booking-system

Full-stack MERN event ticketing platform with PayHere payment processing and QR-coded digital tickets.

  • JavaScript
  • eventtickets
  • express
  • jwt-authentication
  • mern-stack
  • mongodb

Theme

Mocha · blue

Let's connect

Always open to interesting projects and conversations.

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Core toolkit

daily
TypeScript Next.js Node.js PostgreSQL Docker AWS