Freelance developer with 2+ years of experience from Colombia . I design and build web, mobile, and desktop applications that are fast, polished, and genuinely enjoyable to use.
A digital birthday invitation built as a commissioned project for a family member, designed to share every event detail in an elegant, mobile-first layout. Guests confirm their attendance through a simple RSVP flow and participate in a event. The published version is a public demo filled with sample data, standing in for the real details to protect the family's privacy.
A movie and TV show discovery app built on top of The Movie Database (TMDB) API. Users can browse trending titles and open detailed views with synopsis, ratings, cast and more. Fluid carousels and smooth motion-driven transitions make exploring the catalog feel effortless across devices.
A playful landing page designed to introduce children to learning English, delivered as a commissioned client project. Built with Astro for fast load times and excellent SEO, it presents the program's content through a clear, kid-friendly layout. The interface is fully bilingual, letting visitors switch seamlessly between English and Spanish.
A digital birthday invitation built as a commissioned project for a family member, designed to share every event detail in an elegant, mobile-first layout. Guests confirm their attendance through a simple RSVP flow and participate in a event. The published version is a public demo filled with sample data, standing in for the real details to protect the family's privacy.
A movie and TV show discovery app built on top of The Movie Database (TMDB) API. Users can browse trending titles and open detailed views with synopsis, ratings, cast and more. Fluid carousels and smooth motion-driven transitions make exploring the catalog feel effortless across devices.
A playful landing page designed to introduce children to learning English, delivered as a commissioned client project. Built with Astro for fast load times and excellent SEO, it presents the program's content through a clear, kid-friendly layout. The interface is fully bilingual, letting visitors switch seamlessly between English and Spanish.
The newest features from ES2023 and ES2024. New array, Object and Set methods, promises and new operators, safer code.
January 7, 2026Callbacks, promises and async functions.
February 5, 2025Beautiful and fast styles using TailwindCSS.
January 12, 2026Two-dimensional layouts with CSS grid.
January 20, 2026I'm Sebastián, a developer from Colombia, I enjoy what I do. I've been building mobile, desktop and web applications for 2 years, mostly with JavaScript and TypeScript. My favorite part is making things look good.
I started with video games in unity when I was 12, where learned C# and enjoyed creating them, something I still do today. Later, I learned by my self JavaScript in frontend and backend development, as well as databases and security.
I love creating high quality functional, secure and scalable applications with a enjoyable user experience. I'm obsessed with clean, modern interfaces and that final touch that makes an application feel perfect.
The tools and technologies I work with daily.
Have a project in mind or just want to say hi? Fill out the form and I'll get back to you as soon as possible.
