Freelancer profile translated to English.

Description

I am a full-stack developer graduated from Epitech Paris (Master's degree), specializing in the design and development of high-performance, modern, and fully customized websites.

I support my clients from the definition of their needs to the production phase, with a strong commitment to quality, reliability, and speed of delivery.

I offer:

Creation of professional, elegant, and SEO-optimized showcase websites

Development of custom web applications (Java / React / PostgreSQL)

Responsive integration compatible with mobile, tablet, and desktop

Rapid deployment and complete technical support

Maintenance & evolutions according to your needs

Thanks to my corporate experience and my skills acquired at Epitech, I guarantee robust, scalable solutions delivered within controlled deadlines.

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Guert-Yann-Saint-André
Expert Shopify Developer
February 2026 - Today (6 months)
Parisian designer & art director, creator of custom architectural pieces halfway between fashion, objects, and design, made in the workshop.

Development of an online store on Shopify.
Custom integrations in HTML/CSS, JavaScript for a strong and differentiating visual identity.

Highlighting the custom and high-end nature of the creations (immediate impact upon arrival on the site).

SEO optimization for brand visibility.
Expert Shopify Shopify Developer SEO Optimization Shopify site creation JavaScript
PRESTA MRj
Web Developer
February 2026 - Today (6 months)
Event DJ and entertainer for weddings, private parties, and corporate events, based in Hauts-de-France.

Design and development of a showcase website with React, Tailwind CSS, deployed on Vercel
Modern design, aligned with the artist's identity
Optimization of CTAs (calls to action) to maximize quote/contact requests
Highlighting services (weddings, private parties, corporate) to target each type of client
React.js Typescript GitHub OVH HTML/CSS
two.zero
Mobile Application Developer
October 2025 - Today (10 months)
Barcelone, Spain
Mission for two.zero, a Spanish company. Development of a mobile application to connect sports coaches and users.

Development of a mobile application (iOS/Android) in Flutter / FlutterFlow
Connection between sports coaches ↔ users (booking, tracking)
Integration of online payment via Stripe
Development of complementary features in JavaScript
Work in Scrum methodology (sprints, Agile rituals)
JavaScript Flutter Flutterflow Stripe Agile Project Management