Sérgio Júnior
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  • About Me
  • Portfolio

Portfolio

Busca Feiras

My personal project, a site displaying open-air street markets across Brazil on Google Maps. I used Claude Code to transform and format over 2,000 markets from .pdf files, websites and spreadsheets.

  • React
  • Next.JS
  • Typescript
  • Tailwind
  • Monorepository
  • Claude AI
  • Supabase
  • Vercel
  • Playwright

Twitter Clone

My pixel-perfect version of Twitter that I built while studying GraphQL. I implemented the main features, including real-time notifications for new tweets.

  • React
  • Next.JS
  • GraphQL
  • Styled Components
  • Redux
  • Express
  • MongoDB
  • Node.JS

Diário de um Crohnista

I was diagnosed with Crohn's Disease 10 years ago and created my blog, initially on WordPress, to share my experience and help other patients.

  • React
  • Next.JS
  • Typescript
  • Markdown
  • SASS

Zephyr Store

An application built with microfrontend architecture that I made for a job interview process I applied to.

  • React
  • Tailwind
  • Zustand
  • Typescript
  • Microfrontends
  • Webpack
  • Module Federation
  • Lottie Animation

WhatToWatch

A site to recommend the most popular movies right now, with ratings, synopsis, sorted by genre, using The Movie DB API with infinite scroll.

  • Next.JS
  • React
  • Jest
  • Typescript

Snake Game

The classic snake game that I built with React, CSS and Typescript in one afternoon.

  • React
  • CSS
  • Typescript

Feel free to get in touch with me or see my work:

  • LinkedIn
  • Instagram
  • GitHub
  • Medium
  • Gmail
  • CodePen