Freelancer profile translated to English.
Back to original languageAbout Yan
+15 years of experience in commerce and e-commerce, I code with a concrete understanding of the real issues: conversion, retention, performance, maintainability, hidden costs.
I build applications architected to last, not just to be delivered.
French
Native or bilingual
English
Fluent
Can work on-site
Dijon (up to 50km)
Experience
- Compagnie Rouge CardinalFullstack Web Developer - Next.jsARTS AND CRAFTSSeptember 2025 - April 2026 (7 months)Design and development of a custom CMS [Next.js, TypeScript, Supabase] for a theater company, aiming for complete autonomy for non-technical teams.📍Performance Optimization:Reduced JWT authentication validation time from 300ms to <5ms.📍Architecture & Security:Implementation of a DDD architecture with 7-layer security, 100% PostgreSQL RLS, and an inviolable audit trail on 27 tables.📍Key Features:Content versioning, observability, media library with deduplication, and fine-grained role management.
- Retail sur eBay & AmazonE-commerce ManagerJanuary 2010 - March 2017 (7 years and 2 months)21000 Dijon, FranceAs an e-commerce manager, I successfully led the growth of an online business generating 15,000 orders annually. I optimized processes, monitored performance indicators, and ensured quality customer relations. These experiences allowed me to develop skills in project management, data analysis, and customer orientation, essential for success in a development environment.
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Education
- Professional Title Web and Mobile Web Developer Level 5 (Bac +2)O'clock (Certified by the great digital school)2023Fullstack PHP avec spécialisation en React.js