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fockus26/README.md

👋 Hi, I'm Cesar Leon

Frontend Developer · React · Next.js · TypeScript

Building modern, responsive web applications with a focus on clean UI, reusable components, and practical user experiences.

👨🏻‍💻 About Me

I'm a Frontend Developer with approximately 3 years of experience, primarily focused on React and modern web development.

I build production interfaces, administrative platforms, e-commerce applications, and interactive web applications with an emphasis on:

  • Reusable component architecture
  • Responsive and accessible interfaces
  • State management
  • Authentication and authorization
  • API integration
  • Modern frontend tooling
  • Clean and maintainable code

My current focus is React, Next.js, TypeScript, SQL, and Tailwind CSS, while also having practical full-stack experience with Node.js, Express.js, MySQL, and Supabase.

I'm particularly interested in frontend-focused roles where I can build and improve real products using modern web technologies.

🛠️ Tech Stack

Frontend

React Next.js Astro TypeScript JavaScript

UI & Styling

Tailwind CSS Sass CSS3 Material UI Framer Motion

State & Application Development

Redux Redux Toolkit

Backend & Data

Node.js Express.js MySQL Supabase Firebase JWT

Tools & Practices

Git GitHub GitLab Figma Vercel

🚀 Featured Projects

🌎 World Flags

World Flags preview

View World Flags

Learning application based on spaced repetition, featuring authentication, synchronized progress, practice and competitive modes, timed gameplay, and user statistics.

Astro · React · TypeScript · Redux Toolkit · Supabase · Tailwind CSS

🛒 DonKampo

DonKampo preview

View DonKampo

E-commerce and distribution platform with authentication, product management, cart, checkout, orders, administration, reporting, and bulk product management.

React · Vite · Node.js · Express.js · MySQL · JWT

🎫 Bicket

Bicket preview

View Bicket

SaaS prototype for ticket management with authentication, onboarding, private dashboard, CRUD functionality, pricing, and demo sections.

React · Sass · Vercel

⛪ Maranatha

Maranatha project preview

View Maranatha

Website and CMS/admin platform built with Next.js and TypeScript.

Next.js · TypeScript · PLACEHOLDER

💼 Professional Experience

Frontend Developer — DigitalBooting

Nov 2025 – Present · Ruba Project

  • Built and shipped 4 production landing pages using React and Gatsby.
  • Translated Figma designs into responsive production interfaces.
  • Developed reusable React components.
  • Implemented JSON-based Schema.org structured data.
  • Integrated and organized location data for interactive maps.
  • Worked with Git/GitLab, pull requests, code reviews, and Scrum.

Full-Stack Web Developer — Freelance / DonKampo

Nov 2024 – Feb 2025

  • Developed frontend and backend functionality for an e-commerce/distribution platform.
  • Implemented authentication, role-based access, product management, cart, checkout, orders, invoices, and tracking.
  • Developed administrative functionality and bulk product management.
  • Implemented an Excel-based workflow that reduced product-management time by approximately 60%.

Web Developer — Iglesia Maranatha San Cristóbal

2026 – Present

  • Co-developed a website using Next.js and TypeScript.
  • Launched the initial landing-page MVP.
  • Currently expanding the project into a CMS/admin platform.

🎓 Education

React — The Complete Guide (incl. Next.js, Redux)
Udemy · Feb 2026 – Apr 2026

Understanding TypeScript
Udemy · Apr 2026

Full-Stack Web Development Bootcamp
Udemy · Oct 2024 – Nov 2024

📫 Contact

I'm currently interested in remote frontend opportunities, particularly roles involving React and modern web development.

React · Next.js · TypeScript

Building useful things for the web.

Popular repositories Loading

  1. Cafe Cafe Public

    A multi-page website for a local coffee shop, built with Flask, HTML, CSS, and JavaScript.

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  2. Bot-Tickets-Case-Study Bot-Tickets-Case-Study Public

    Case study of a commercial ticket-purchasing automation bot using Browser Automation Studio and custom scripting.

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  3. LiveChat LiveChat Public

    A real-time chat app built with Node.js, Socket.IO, and React for a 1-day coding challenge.

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  4. Product-List Product-List Public

    A modular SPA built with Knockout.js, Sammy.js, and Bootstrap for managing products with authentication and routing.

    JavaScript

  5. Bicket Bicket Public

    SaaS prototype for multi-client ticket management with a modern UI and private dashboard.

    JavaScript

  6. Portfolio Portfolio Public

    Personal portfolio website built with Flask, HTML, and CSS – my first web project.

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