Freelancer profile translated to English.
Back to original languageAbout Jonathan
🧠 Ruby on Rails Developer with 18 years of experience, I work on your projects with a product, quality, and performance-oriented approach.
💎 Ruby on Rails for your web projects
• Development of robust and maintainable business features
• Takeover or audit of existing code
• Design and implementation of backend architectures
• Performance optimization and refactoring
• Integration with third-party APIs (payment, billing, authentication, etc.)
• Implementation of automated tests (RSpec, CI)
I have worked on high-traffic platforms (Electra, Youboox), complex issues (roaming, international billing, streaming audio), and led tech teams. I can work independently or as part of your teams.
⚙️ What I bring to you
• Clear, tested, and production-ready code
• Quick understanding of your business challenges
• Fluid communication with product and business teams
• Ability to adapt to your existing processes
• Sound technical advice for making the right long-term choices
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- ELECTRAEngineering ManagerTECHSeptember 2022 - December 2024 (2 years and 3 months)Paris, FranceEngineering Manager for the ChargeXP and CashFlow teams, with primary projects including the implementation of the AutoCharge feature, AndroidAuto/CarPlay, internationalization of the application and backend, responsibility for the CPO roaming part (OCPI, OICP), migration of the payment system to Adyen (POS and online), and takeover of the billing engine.
- YoubooxRemote Engineering ManagerENTERTAINMENT AND LEISUREJanuary 2021 - August 2022 (1 year and 7 months)Paris, FranceDesign and architecture of Switch books (audio + text).Design and architecture of the Cléo service for daily verification of press imports.
- YoubooxRemote Lead BackEnd EngineerENTERTAINMENT AND LEISUREJanuary 2018 - January 2021 (3 years)Paris, FranceDesign and implementation of the partner authentication part (FREE, DigitalVirgo, SFR).Design and architecture of the API v2 (definition of REST endpoints, documentation, implementation).Design and implementation of audiobooks (HLS, ffmpeg, S3).
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Education
- Computer Developer TitleAFPA2005