Hey, I'm Sebastián

Frontend developer who builds modern and efficient interfaces. Designed to work well without making too much noise. I turn ideas into clean and smooth web experiences.

Some of my projects

Portfolio Web - Personal Project

Astro
Tailwind
JavaScript

My personal portfolio website built with Astro and Tailwind CSS. It showcases my projects, experience, and skills in a clean and responsive design. The site is optimized for performance and accessibility, reflecting my growth as a developer.

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Hotel booking - Full Stack Project

Next.js
React
Bootstrap
CSS
JavaScript
MySQL

School project I developed on my own. I built a backend with Node.js, Express, and MySQL, creating routes, API endpoints, and database queries. The frontend, built with React, consumes the API and renders the data dynamically.

React Project - Country explorer

React
JavaScript
HTML
Bootstrap

School project developed to practice a more complete front-end workflow. Built with React, using Redux for state management, useEffect for lifecycle handling, and external APIs for dynamic data. The interface is component-driven, with clear separation of logic and UI.

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CMS Project - Online Library System

Strapi
HTML
CSS
JavaScript
Bootstrap

School project focused on building a simple library-style CMS. Users can browse books, view details, and manage entries through an admin interface. The frontend was made with HTML, CSS, and JavaScript, while the backend was built with Strapi, connected to an SQL database for storing and managing the library's data.

Tamagotchi - Virtual Pet Simulation

HTML
CSS
JavaScript

School project focused on strengthening JavaScript logic and state management. A simple virtual-pet app where the creature's stats (hunger, energy, mood) change over time and react to user actions. Built with HTML, CSS, and JavaScript.

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Quiz-Ankademin - Web Quiz App

HTML
CSS
JavaScript

School project built to practice fundamental front-end skills. A small quiz application made with HTML, CSS, and JavaScript. The site loads questions, checks answers, and shows the score in a straightforward interface. Developed as part of my learning process; I handled the implementation of the quiz logic and UI structure.

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Plock & Gott - Catering Website

HTML
CSS
SASS

School project developed in a team of three. A static site built with HTML5 and CSS3 to present catering services. It was my first project using these technologies. My contributions were the Products, About, and Footer sections

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About Me

My name is Sebastian Valdes, but my friends call me Sebbe. I entered the world of programming thanks to Minecraft, when I began modifying plugins that already existed because they didn't do exactly what I needed. Over time I drifted a bit away from technology, but eventually I returned, now focused on frontend development, where I found a balance between logic, design, and the building of efficient interfaces.