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David Calonne

Front-end developer in Lille, France, focused on accessibility.

David Calonne

I design and build websites and web and mobile apps, from the Figma mockup to production.

See my workGet in touch

Hi, I'm David.

David Calonne sitting on a sofa with his laptop on his lap, next to a sleeping dog.

A 26-year-old front-end developer based in Lille, France, who cares about modern, fast and intuitive interfaces.

Accessibility is at the heart of my work: I design and build interfaces that meet WCAG, usable with a keyboard as well as a screen reader.

On the side, I build my own apps: Focus Widget, MySubis and Workomp, live on the App Store, and Trackeese, a habit tracker.

AI is part of how I work: Claude Code every day, custom skills and agents, and MCP servers that connect AI to my tools.

I enjoy technical challenges and getting better with every project.

Mobile apps

iOS apps I design, build and publish, from the first mockup to the App Store listing.

Work

Products I design and build end to end, and websites delivered for clients.

Archive

Everyday tools

Front-end

  • HTML
  • CSS
  • JavaScript
  • TypeScript
  • React
  • Next.js
  • React Native
  • Expo
  • SwiftUI
  • WidgetKit
  • Ionic
  • Tailwind CSS
  • Liquid

Accessibility

  • WCAG 2.2
  • RGAA 4.1
  • WAI-ARIA
  • Keyboard navigation
  • Screen readers
  • axe, Lighthouse

AI

  • Claude Code
  • Skills & agents Claude
  • MCP
  • API Claude

Back-end

  • Node.js
  • Fastify
  • PostgreSQL
  • Python
  • PHP
  • Laravel
  • Java
  • Supabase
  • Prisma
  • WordPress

Tools

  • GitHub
  • Figma
  • Suite Adobe

Background

  1. Since Aug 2024

    Front-end developer

    Lille, France

    Building and integrating websites and interfaces in HTML, CSS, JavaScript and React.

  2. Training

    Web design

    Web design training

    Designing websites from mockup to integration. Final-year project delivered for a real client.

  3. Ongoing

    Self-taught

    Personal projects

    React, Next.js, React Native and TypeScript, learned by building my own products.

Got a project in mind?

For any question or proposal, write to me.

contact@davidcalonne.fr
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