Work

Marketplace — Real-time chat module

Work

Next.js
Socket.IO
TypeScript
Real-time

Front-end Engineer responsible for the real-time chat module of a marketplace web app — instant messaging, file uploads and image previews.

Marketplace web app with real-time chat between buyers and sellers

Role: Front-end Engineer · Duration: April 2024 – May 2024 · Stack: Next.js, TypeScript, Socket.IO

A marketplace web application connecting buyers and sellers. I was brought in to deliver the real-time chat module, a critical surface for conversion and customer support.

Key contributions:

  • Designed and implemented the chat UI in Next.js with TypeScript, ensuring responsiveness and accessibility across breakpoints.
  • Wired up Socket.IO for bi-directional, low-latency messaging with reconnection handling and presence indicators.
  • Added file uploads and image previews, including client-side validation and progressive rendering for slower connections.
  • Tuned component re-renders and state updates to keep the chat smooth even during high message volume.

The module shipped on schedule and became a primary communication channel between buyers and sellers on the platform.