Freelancer profile translated to English.
Back to original languageAbout Jonathan
Web developer since 2017, I've had the opportunity to work on projects of all sizes, from a shopping list assistant to an independent artist's online store, or a multilingual CMS for a large group.
Architect by training, I learned development self-taught, first through personal projects, then through my professional experiences in startups and for large corporations.
My key skills:
- **Backend**: Node.js, Python
- **Frontend**: Javascript/Typescript (with or without framework: Angular, Vue, Svelte, ...)
- **UX / UI**: HTML / CSS (Sass), UX / UI design, conception and integration
- **SEO & performance**: accessibility (WCAG), performance optimization and technical SEO
- **Automation & quality monitoring**: CI / CD, TDD / tests (unit, integration, E2E), monitoring
I can handle a project from conception to delivery autonomously, or integrate effectively into an existing team. I attach great importance to communication, frequent feedback, and best practices (testing, automated deployment, etc.) to ensure reliable deliverables.
Despite my current specialization in web development, I'm always looking to broaden my horizons. I quickly learn new technologies or tools, and I regularly experiment in other areas in my free time (mobile apps with Dart, game development with Godot, etc.).
If you are looking for a versatile, rigorous, and creative developer to bring your project to life, I would be delighted to discuss your project with you!
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Michelin - Mapping FactoryLead Node/Python DeveloperAUTOMOBILESeptember 2023 - March 2026 (2 years and 6 months)Boulogne-Billancourt, FranceThe Michelin Mapping Factory entity operates a service platform for collecting, processing, and consulting geospatial data for the group's internal needs and its clients.As part of this mission, I design, develop, and maintain applications and services (new or existing) related to this geospatial data, in an agile environment.**Visualization**: Development and maintenance of SDKs for integration with Michelin's mapping and route calculation APIs.**Data Analysis & Generation**: Processing municipal administrative data to produce usable SEO data (identifying relevant cities near a GPS point based on importance, distances, and context).**Mapping Tools**: Dynamic generation of legends from MapLibre map styles, implementation of tile servers for 'slippy maps'.**AI & Automation**: Design of an end-to-end tool using an agentic AI to extract toll prices from unstructured sources (websites, PDFs, images, etc.).**Lead & Management**: Documentation, project structuring, technical team supervision.
- Michelin - DCTILead Back-End DeveloperAUTOMOBILEAugust 2018 - June 2023 (4 years and 10 months)Lyon, FranceThe Michelin DCTI entity is responsible for the group's IT methods and tools, and more specifically for this mission, the management of a centralized platform for the group's B2C and B2B sites worldwide.My role in this mission was initially active development within project teams, then evolved primarily towards the design of cross-project tools/services and the support of various technical teams.− Creation, deployment, and maintenance of a CMS platform (ApostropheCMS)− Creation of shared modules/libraries and services− Design and implementation of testing strategies (unit, integration, E2E, load)− Support and coordination of different project teams (mixed France/India)
- APRR-AREAFull Stack Web DeveloperTRANSPORTATIONJanuary 2018 - August 2018 (8 months)Villeurbanne, FranceAPRR - AREA (Eiffage group) is a company specializing in the field of auxiliary transport services (tolls, highway service areas, etc.). The mission aims to create and evolve multiple internal tools for monitoring the highway networks and infrastructures managed by the group, as well as processing and tracking accident data.− Development of a Web application (Angular), a REST API (Node.js), and 'workers' (asynchronous data processing services, Node.js)− Management and optimization of MongoDB databases
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Education
- State Diploma of Architect (DEA)ENSA Nancy2016Master d'Architecture (2014-2016) et Design global (2015-2016) réalisés en double cursus.