Hi there!👋 I'm

Ezequiel Castellanos

Front End Web Developer

About me

I'm a self-taught front end developer specializing in JavaScript. I have experience working with React and backend technologies, such as Node.js, Express, MongoDB, and GraphQL. I like helping new developers achieve their goals, I also contribute to online open-source communities with translations, fixes, and reviews of technical articles.

I enjoy volunteering my time to help translate articles and tutorials such as the Javascript.info open-source tutorial with translations and as a maintainer of the Spanish GitHub repository. I'm also part of the freeCodeCamp translator community, contributing with translation and review of articles.


  • React
  • JavaScript
  • HTML5
  • CSS3
  • SASS
  • Material UI
  • NPM
  • Node.js
  • GraphQL
  • GitHub
  • Git
  • MongoDB
  • Jest

Some of my projects

Rick & Morty Memory Card Game
Tecnologies used:
  • Vite
  • Vanilla JS
  • CSS
  • React
  • Semantic UI

Flip a card and find the matching pair. This game was built using Vite + React, Vanilla JavaScript and the UI component framework Semantic UI. I've added a confetti celebration when all cards have been flipped, and a restart button to start the game again. Libraries used: lodash: used to shuffle the cards randomly; react-confetti: celebration confetti for winners; semantic-ui-react: used for buttons and modal

Portfolio / Blog Site
Tecnologies used:
  • Next.JS
  • TypeScript
  • Tailwind CSS
  • React-Markdown

My portfolio webpage using Next.js and Tailwind CSS to showcase some of my front-end projects. This portfolio site also hosts a blog, which I write to share my insights and knowledge on various front-end development topics. The blog posts are in markdown format, which is converted to HTML markup using the react-markdown library.

Social Media App
Tecnologies used:
  • React
  • Node.js
  • MongoDB
  • GraphQL
  • mongoose
  • Apollo Server/Client

A social media app clone where users can register, login, create posts, like posts, and comment on them. I've added new features to the base app such as: allowing the user to edit their posts, responsive layout, light/dark theme selector, and User Profile.

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