Freelancer profile translated to English.
Back to original languageAbout Simon
Senior Web Developer & Architect — I design AND develop your custom projects
You are launching or revamping a website, business application, or e-commerce platform, and you want a single, reliable point of contact who understands your challenges and codes themselves — not an agency that outsources, nor a provider who disappears after delivery?
This is exactly what I do. Independent senior developer and former CTO (20 years of experience, from SMEs to large corporations), I handle your digital projects from end to end. I sell solutions: I translate your business challenges into high-performing, maintainable products designed to convert.
What I design and develop
Custom Web Applications & Business Software
React Applications (builders, client areas, business tools)
AI / LLM Integration (writing assistance, content generation)
Payments and subscriptions (Stripe), portals and secure areas
Complex platforms: multi-step forms, calculations, reporting
Websites & E-commerce
Showcase sites, institutional sites, and landing pages
Overhaul of existing sites
Prestashop, WooCommerce, and Drupal E-commerce
Technical SEO, performance, accessibility (RGAA), eco-design
Design & Architecture
Site map, user journeys, wireframes (Figma)
Technology stack and technical architecture choices
Maintenance & Support (TMA)
Corrective and evolutionary maintenance
Hosting, monitoring, security
Technical consulting and continuous improvements
For whom?
Executives, decision-makers, and teams who want a senior technical partner capable of carrying the vision and guaranteeing its execution — without compromising on quality or deadlines. I work on long-term relationships.
Why choose me?
My background as a CTO and senior developer is your assurance: a single point of contact who thinks strategically AND executes technically.
English
Fluent
French
Native or bilingual
Can work on-site
Cholet (up to 50km), Nantes (up to 10km), Angers (up to 10km), Paris (up to 50km)
Experience
- NetclicDevelopment of an AI React builder for CVs, cover letters, and Stripe subscriptions - modele-cv.comDIGITAL AND ITJune 2025 - March 2026 (9 months)Les Herbiers, FranceTechnical overhaul and development of a dynamic React builder for modele-cv.com, designed to generate CVs, cover letters, and resignation letters from an advanced, modular, and responsive interface.The mission involved transforming existing HTML mockups into a true React application, with complete business logic, user-friendliness adapted for desktop, tablet, and mobile, as well as an artificial intelligence layer to assist the user in writing their sections, professional descriptions, and personalized texts.The builder allows progressive composition of a document from modular blocks, real-time visualization of the result through an advanced preview, and then generation of a final PDF via a custom server-side engine.Tasks performed:
- Overhaul of the site's technical architecture
- Transformation of HTML mockups into a dynamic React application
- Development of a modular builder for CVs, cover letters, and resignation letters
- Design of responsive user experience for desktop, tablet, and mobile
- Creation of an advanced real-time document preview
- Management of CV templates with replacement fields
- Integration of an AI layer for writing assistance
- Assisted content generation for sections, descriptions, and personalized texts
- Development of a custom server-side PDF generation engine
- Fine-grained management of subscriptions and user rights
- Integration and structuring of payments with Stripe
- Server management, hosting, and production environment
- Corrective and evolutionary maintenance of the platform
- Long-term TMA and continuous technical support
This mission allowed modele-cv.com to evolve into a complete application platform, capable of combining document generation, editorial AI, subscription payments, and server-side PDF production, maintainable over time. - Éditions Musicales ArtchipelCreation of a WordPress/WooCommerce portal for digital sheet music licenses in librariesCULTUREJune 2025 - October 2025 (4 months)Paris, FranceDesign and development of a custom digital portal for Artchipel Music Editions, intended to make their catalog of digital sheet music accessible to libraries, conservatories, higher education institutions, media libraries, and partner institutions under license agreements.The mission involved creating the portal's technical architecture, verifying the compatibility of the system with authentication methods via EZproxy, and then developing a custom WordPress / WooCommerce plugin. This plugin acts as an application layer on top of the publisher's existing e-commerce site, to automatically utilize WooCommerce products containing PDF sheet music, without disrupting the operation of the main online store.The system allows for the generation of private portals, each associated with a library or licensed institution.Tasks performed:
- Design of the portal's technical architecture
- Study of compatibility with library access via EZproxy
- Development of a custom WordPress / WooCommerce plugin
- Creation of an application layer independent of the main store
- Retrieval and utilization of WooCommerce products containing PDFs
- Generation of private portals for libraries and licensed institutions
- Access management based on contracts and granted rights
- Creation of list pages with advanced filtering
- Integration of PDF, audio, and video content
- Management of digital sheet music downloads
- Implementation of access and download counters
- Usage monitoring and access security
- Administration interface to allow the client to manage the portals themselves
The project combines advanced WordPress development, application architecture, rights management, secure digital content distribution, and integration with a business model based on institutional licenses. - Orchestre National de BretagneWordPress Redesign/TMA and technical architecture for orchestrenationaldebretagne.bzh websiteCULTUREJanuary 2025 - June 2025 (5 months)Rennes, FranceRedesign of the ONB website's WordPress theme with technical restructuring of the platform, optimization of the application core, and monthly maintenance and architecture consulting.The mission involved modernizing the existing theme, making front-end integration more reliable, improving the site's technical organization, and establishing a clearer foundation for future developments. The goal was to make the site more stable, more maintainable, and better suited to the needs of an institutional cultural organization.Tasks performed:
- Redesign of the existing WordPress theme
- Technical restructuring of the site and application core
- Cleaning and rationalization of templates
- Optimization of responsive integration
- Improvement of code maintainability
- Consulting on WordPress technical architecture
- Monthly corrective and evolutionary maintenance
- Technical monitoring, recommendations, and ongoing support
This mission combines a strategic and operational approach: intervening on the code, but also advising the client on the right technical choices to ensure the site's longevity, the clarity of its architecture, and the quality of its future developments.
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Education
- Gérez votre code avec Git et GitHubOpenclassroom2023GIT, Github, Gitlab, SVN
- Front End Web DevelopmentTreeHouse2019In this track, you’ll learn how to build beautiful, interactive websites by learning the fundamentals of HTML, CSS, and JavaScript — three common coding languages on which all modern websites are built. This is a useful and lucrative skill to acquire as it is used by nearly every single business in the world that needs a website to communicate to its customers. By the end of this track, you’ll have all the skills required to build your own websites or even start a career with one of the thousands of companies that have a website. My profile : https://teamtreehouse.com/simonjanvier