React
JavaScript
Tailwind
Next.js
TypeScript
I'ma19-year-olddeveloperfromSpain,passionateaboutcreatingseamlesswebapplicationsusingJavaScriptandmodernframeworks.
Solvingbrandchallengesthroughstrategicdesign
Design
thatengageswithdistractedaudiences,anddrivingprofitableaction.
Node.js
React Native
Figma
Framer

Selected work

Some of my projects.

PartyUp!

Turn any night into the best night.

PartyUp!

MobileSocialGames
UpFolio

A full SaaS to transform your CV into a portfolio.

UpFolio

AINext.jsFull Stack
TextLab

Type a sentence, get an iOS-style mockup.

TextLab

WebDesign toolApple
YourStory

Mindful journaling with end-to-end encryption.

YourStory

WellnessPrivacyReact
Javi for Artists

Web design crafted for artists and creators.

Javi for Artists

DesignArtistsWeb
AutoEmoji

A Chrome extension for instant emoji suggestions.

AutoEmoji

Chrome ExtensionDX
Rusowsky

The official website for the artist Rusowsky.

Rusowsky

MusicWeb DesignFramer
BuildUp

A 24-hour challenge app that grows your community.

BuildUp

ChallengeSocialCreative
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Projects completed

0+

Years of experience

0+

Satisfied customers

My journey

Professional path.

Present

Web Development Intern

Currently doing my internship in Poland, developing modern websites with Next.js and working with front-end technologies to build fast, accessible user experiences.

Mar 20252nd place · €1,500

Microsoft Hackathon — Hacking the Future

2nd place at The Wave (Zaragoza) with team Salesianos Prejubilados. Built GreenStep, a mobile app that recommends the transport option with the lowest carbon footprint — a challenge proposed by Fundación Ecodes.

Read the announcement
Sep 2024 — Mar 2026

DAM Student

Studying Multiplatform Application Development at Salesianos Zaragoza, learning Java, JavaScript, React, and database management.

Mar — Jun 2024

Web Development Intern

Developed modern websites during my internship at Salesianos, working with front-end technologies and improving web accessibility.

2022 — 2024

SMR Graduation

Graduated from the Intermediate Vocational Training in Microcomputer Systems and Networks at Salesianos Zaragoza.

Customer reviews

What people say.

Javi is an amazing front-end developer, a great person, and a coffee guy. He's always willing to help and has given me valuable advice. He's very creative and has a great eye for design.

cristinasevi
cristinasevi

Very thorough work! I started working with him on a simple project, and since then, I have trusted his great work every time I need something.

Seergio
Seergio

Javi is a go-to person for iteration and ship velocity. He independently finds smart, creative, and efficient solutions.

Pacorro
Pacorro

Working with Javi is synonymous with trust. He has such clear ideas that working as a team with him is encouraging, in addition to always being in constant learning.

Rubén MLL
Rubén MLL

Fast and high quality work. The best thing is the personalized attention that adapts to your needs. 100% recommended.

Pau
Pau

Very reliable and professional, easily adapts to your tasks and responds to criticism really well. Would hire again if needed.

Aarronco
Aarronco

Javi is an amazing front-end developer, a great person, and a coffee guy. He's always willing to help and has given me valuable advice. He's very creative and has a great eye for design.

cristinasevi
cristinasevi

Very thorough work! I started working with him on a simple project, and since then, I have trusted his great work every time I need something.

Seergio
Seergio

Javi is a go-to person for iteration and ship velocity. He independently finds smart, creative, and efficient solutions.

Pacorro
Pacorro

Working with Javi is synonymous with trust. He has such clear ideas that working as a team with him is encouraging, in addition to always being in constant learning.

Rubén MLL
Rubén MLL

Fast and high quality work. The best thing is the personalized attention that adapts to your needs. 100% recommended.

Pau
Pau

Very reliable and professional, easily adapts to your tasks and responds to criticism really well. Would hire again if needed.

Aarronco
Aarronco
Available · May

Interested in my work?

Picking up new projects for the next few weeks. A site, a product, a rebrand — let's talk.

 123
spots left in May.