Freelancer profile translated to English.
Back to original languageAbout Yann
TypeScript/JavaScript fullstack developer specializing in React/Node.
- Company certified for Innovation Tax Credit (CII) since 2025
On the back-end, I have been working on Node.js projects (with or without TypeScript) for several years. I have helped teams initialize their stacks, deploy their applications, or provide support.
With a background as a web integrator, I can respect the design of your applications or websites, bring my attention to detail, and I would be happy to exchange with your teams.
One day a week, I am notably in charge of the product management / development of a React / Node.js application on the Shopify App Store, installed by approximately 200 merchants.
- Load issues
- Outsourcing part of the development, marketing, and support to other freelancers
- Public Shopify application installed on over 200 stores of all sizes
I would be delighted to adapt to your structure and teams!
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- LonginesNext.js / React / TypeScript Audit & DevelopmentLUXURY GOODSJune 2022 - December 2024 (2 years and 5 months)Audit of the stack then Next.js development on the Longines e-commerce site: https://www.longines.comStack: Next.js / TypeScript / SWR connected to a Magento & Sulu APIGraphQL generation with Codegen & Mesh- High traffic site, translated into 40 languages- Support for the team in architecture, tooling, and Next.js stack development- Improvement of Lighthouse performance- Multithreaded deployment of Next.js with PM2
- BellepoqueShopify React/Node.js Application DevelopmentE-COMMERCEJune 2022 - June 2022 (1 month)Paris, FranceSupport for the Bellepoque team in the final stages of developing their Shopify Live Shopping application/connector.- Implementation of the Bellepoque business model (monthly subscription + pay-per-use billing)- Connection with Bellepoque and Shopify APIs (Rest & GraphQL)- Development of a theme app extension to enable the- Processing of Shopify feedback- Remote mission
- Otis (ex Uptime.ac)Monorepo Architecture Consulting & ImplementationINTERNET OF THINGS (IOT)April 2022 - May 2022 (1 month)Paris, FrancePreparation for migrating a monolithic front-end architecture & component library to a distribution across multiple projects & libraries within a monorepo.Objectives:- Consolidate / organize JavaScript / TypeScript projects in a single codebase- Simplify MR reviews (possibility of a single MR covering both front-end and back-end)- Promote the adoption of in-house libraries (graphic components, shared business logic)- Centralize project configuration (tsconfig, ESLint, Prettier, build...)- Approach the increase in the number of projects with confidenceProcess: audit, consulting, and work environment configuration.- Qualification of different solutions (NX, Lerna, Yarn Workspace...) # Largely completed by the client- Selection of Yarn Workspace for its apparent simplicity, its consistency with a JavaScript stack, and its ability to share dependencies- Implementation of Yarn Workspace- CI update (performed by the client)- Configuration of a first project- Configuration of a first JavaScript library environment & integration on the project side- Version upgrade of React and other libraries (front-end libraries, jest, cypress...)
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Professional License CISIIIUT Nancy Charlemagne2007Formation développement web frontend & backend Conception / Intégration de Systèmes Internet & Intranet
- DUT MMI (formerly SRC)IUT Saint-Dié des Vosges2006Formation en multimédia & communication. Dernier semestre et stage au Québec
Certifications
- Expert AccessiWeb - Web AccessibilityBrailleNet2009