You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Gael BertinGB

Gael Bertin

React & React Native Developer

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Gael

Your website should be an asset, not a technical burden.

Hello, I am a web developer specializing in creating modern, secure, and ultra-fast websites.

Graduating from the excellent École 42, I am not just an integrator, but a rigorous technician accustomed to solving complex problems.

My approach is simple: I deliver a high-end website that you can modify yourself, with a solid technical structure that will last.

🎓 The École 42 "Touch": Why me?
I was trained the hard way at 42, the globally renowned coding school for its project-based pedagogy and demanding standards.

What I did there: I learned to code "from scratch" (without magic tools), to manage complex architectures, and to adhere to strict coding standards.

What this means for you: I am autonomous and tenacious. Faced with a bug or a specific technical constraint on your project, I don't get stuck: I find the solution, quickly and cleanly.

💡 My promise for your project:
✅ Total Independence (Custom Back-Office): I set up a simple administration interface (CMS like Strapi/Sanity). You manage your texts, photos, and blog posts as easily as on Word.

✅ Performance & SEO: I use cutting-edge technologies (Next.js, Astro) so your pages load instantly. Google favors these fast sites.

✅ Technical Peace of Mind (Hosting Included): I configure everything from A to Z: domain name, server, security certificates (HTTPS). You have nothing to manage.

🛠️ My Services:
Creation of custom showcase & catalog websites.

Development of back-offices to manage your data.

Technical redesign to improve the speed of an existing site.

Maintenance and security.

🤝 Have a project in mind? Let's discuss your needs. With my technical rigor and your business vision, we will create a high-performance website that will grow your business.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Kompo.
    Full Stack Developer
    LUXURY GOODS
    August 2025 - Today (10 months)
    Paris, France
    Project Name: Kompo – Complete SaaS Ecosystem for Modeling Agencies
    Role: Lead Fullstack Developer / Technical Architect
    Stack: React Native (Expo), React (Vite), Supabase, TypeScript, Monorepo (Turborepo/Nx).

    🛠️ Technical Achievements & Architecture
    I implemented a unified Monorepo architecture allowing 100% of business logic (Types, Hooks, Config) to be shared between Web and Mobile.

    1. Mobile Application (iOS/Android) – Model & Booker Side
    Development with React Native & Expo.
    Performance: Client-side image compression pipeline (WebP conversion, resize) reducing upload size by 90% (5MB -> 300KB) for a smooth UX and reduced storage costs.
    Navigation by Role: Unique architecture managing two distinct interfaces (Model vs. Booker) within the same application.
    Offline-first: Cache management with TanStack Query for network-free calendar viewing.

    2. Web Dashboard (SaaS) – Agency Side
    React + Vite development with a modern UI (Tailwind CSS + shadcn/ui).
    Productivity: Fast validation interface ("Review Queue") controllable by keyboard to process hundreds of photos in minutes.
    Real-time: Implementation of Supabase Realtime for instant notifications of new uploads.
    Data Visualization: Complex dashboards with advanced filters and grouped "Submissions" management.

    3. Backend & Security (Supabase)
    Complete Serverless Architecture.
    Complex relational data model (PostgreSQL) optimized for performance.

    💡 Why choose me?
    On this project, I demonstrated my ability to:
    360° Vision: Simultaneously manage Web Front, Mobile, and Backend.
    Pragmatism: Choose technical solutions that serve the business (OPEX cost reduction, rapid Time-to-market).
    Quality: Strict TypeScript code, end-to-end shared typing, and polished UX.
    Supabase React Native React.js UI/UX Design TailwindCSS
  • chronoflex
    Front End Developer
    June 2024 - September 2025 (1 year and 3 months)
    - Creation of a Google authentication module
    - Creation of boilerplate for the company
    - Participation in UX research
    JavaScript Web Development

Recommendations

Be the first to recommend Gael

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Digital Solution Architect
    Ecole 42
    2025

Skill set

Categories