Outdoor tourism website
O’Limpide Verdon
An outdoor adventure website for the Verdon, with a custom interface and content managed through Payload CMS.
Explore projectFreelance full-stack developer
Websites & applications.Built for your
business.
I’m Gilles Mastropasqua. I help businesses and agencies build custom websites and web applications, from the first interface to deployment.
Independent since 2010Based in France
01 / Selected work
Ideas turned into
working products.
From an outdoor tourism website to an equine genetics application. Different projects, with the same attention to how people use them.
Multilingual web application
EquiGenes
An equine genetics application combining a coat colour calculator with accessible educational content.
Explore project
Interactive mapping · Contribution
TET Atlas
A contribution to the interactive mapping application for the Trans Euro Trail.
ContributionExplore projectMore from the archive
Earlier work for cultural organisations and local communities.
Arts & culture
Société des Pastellistes de France
A cultural website and artist directory for a French pastel society.
Local government
Mairie de Castellane
A municipal website with content management and tourism data from Apidae.
02 / How I can help
From the first screen
to what comes next.
A new project, an existing product or an extra developer for your team. I can help at each stage.
Custom websites
Company websites, landing pages and content-led sites. Built with care for accessibility, mobile use, performance and the technical foundations of SEO.
Web applications & APIs
Interactive tools, business applications and administration interfaces. I connect the interface, application logic and services your project needs.
Content & ongoing development
Content management that works for your team, plus maintenance and new features as your needs change. I also work on existing JavaScript and PHP applications.
An extra pair of hands for your agency.
I can join your team to integrate interfaces, develop features and help move an existing project forward.
03 / A little about me
A developer’s craft.
An owner’s perspective.
I’m Gilles, a full-stack developer based in Saint-André-les-Alpes, in the French Alps.
I’ve worked independently through 3W Création since 2010, building websites and applications for businesses, associations and independent professionals.
Before web development, I was a climbing and canyoning instructor and ran an outdoor activity business in the Verdon. That experience still shapes the way I work: understand the practical need, keep things clear and see a project through.
Today, I work across JavaScript and PHP, with React, Next.js and Payload CMS among my main tools. I like building things that are straightforward to use, maintain and develop.
04 / Get in touch
What are you
working on?
A website to create, an application to develop or a team that needs support? Tell me a little about your project and where things stand.