Freelancer profile translated to English.
Back to original languageAbout Blaise
Fullstack Developer – Expert inReact Native**, **React**, and **Ruby| CTO - 15 years of experience
With over 15 years of experience and more than 200 projects in **React Native**, **React**, and **Ruby**, I support startups and SMEs in creating high-performance web and mobile applications.
I am also the author of a book onReact Nativepublished by Eyrolles, recognized for my teaching skills, technical rigor, and ability to challenge projects to ensure their success.
As a React Native / React / Ruby developer, I offer:
Mobile & Web Application Creation
Design of fast, robust, and scalable MVPs
Development of high-performance web interfaces (React)
Creation of native iOS/Android apps (React Native)
Back-end & APIs
Development of solid backends in Ruby / Rails
Creation & integration of REST APIs / Webhooks
Server performance & architecture optimization
Redesign & Migration
Migration of existing apps to modern stacks
Rewriting legacy code for improved maintainability
Integration of complex modules: auth, payment, real-time...
Technical Direction & Support
Complete project management, from specification to deployment
Code reviews, pair programming, mentoring
Clear interface between business needs and technical architecture
Training & Skill Transfer
Support for junior dev teams
Clear documentation for project onboarding
Product / startup technical coaching
Why work with me?
Recognized expertise in React Native, React, and Ruby
Published author with Eyrolles
Effective, product-oriented methodology
Clear communication, without unnecessary jargon
Over 100 successful projects – from agile startups to structured SMEs
đź“© Contact me today to discuss your mobile, web, or backend project.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km), Marseille (up to 50km)
Experience
- Follower Products
On Malt
Writing technical specifications for the mobile applicationINTERNET OF THINGS (IOT)February 2026 - April 2026 (2 months)- Writing technical specifications for the mobile application;- Collaboration with teams on the development of the mobile application. - Maison de Champagne TaittingerUpdating the application with new vintagesWINE AND SPIRITSJuly 2025 - July 2025Troyes, FranceUpdating the Android SDK and updating with new vintages and a new redesigned interface.This update is part of the constant evolution of the mobile application over the years to maintain the refined image of Maison de Champagne Taittinger through an elegant design and an optimized navigation experience.
- ApiterraUpdating the mobile applicationRESTAURANTS AND FOOD SERVICEJune 2025 - June 2025Troyes, FranceUpdating the mobile application for the new Android SDK and adding new features.Google now requires mobile Android applications to use the latest Google SDK, which necessitates an application update. We took this opportunity to add new features related to Apiterra's business.
Reviews
Recommendations
+1
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Education
- Internet and Multimedia Professions Bachelor's DegreeIUT de Troyes2014Licence en développement web et graphisme, en alternance dans l'entreprise ADN SYSTEMES.
- Full-Stack web and mobile development React, React Native, Ruby on Rails & Symfony | Mockups | Social Networks & Communication | Project ManagementSelf-Taught2010Autodidacte dans le développement depuis 2010, je réalise une veille permanente autour de React, React Native et Ruby - et par le passé Symfony (PHP). Je suis fan de nouvelles technologie, notamment connectées.
Certifications
- Self-taught in web and mobile developmentSelf-Taught
- Lead DevOpenClassrooms2017