About Lionel
French
Native or bilingual
English
Fluent
Experience
- BNP-ParibasSenior Front-end Developer React/React-nativeBANKING AND INSURANCEJuly 2025 - Today (11 months)Rueil-Malmaison, FranceWithin the Savings Retirement Company division, I contributed to the development and improvement of the retirement process in the 'Mon Epargne Entreprise' application (over 800k users).- Improvement of the biometric authentication system for the 'Mon Epargne' application (iOS/Android)- Integration of a customer event management feature in the backoffice used by support teams.- Implementation and writing of unit and integration tests for the mobile app and backoffice with Storybook.- Improvement of the accessibility level on the web and mobile application.
- OMNIVENTUSLead Developer React NodejsVIDEO GAMES AND ANIMATIONDecember 2024 - June 2025 (6 months)Paris, FranceDevelopment of a cross-platform arcade mobile game (SwarmCrush) under React Native / Expo.
- Advanced state management with Redux, Redux-sagas, React Context, and Firestore.
- Integration of social authentication (Apple, Google, Facebook) and real-time leaderboards.
- Performance and animation optimization with Reanimated for smooth 60 FPS gameplay.
- Implementation of a progression system, trophies, and notifications to increase engagement with Firebase Cloud Functions.
- Error monitoring and management via Sentry.
- Automated deployment and CI/CD with GitHub Actions, Makefile, and Docker.
I also designed and deployed LibreChat Enterprise, an enhanced version ofLibreChat**, an open-source platform providing access to various **AImodels (GPT-4o, PaLM 2, etc.) through a unified interface. This customization offers features tailored to business needs: **advanced user management**, administration of **shared files**, permission-based access controls, and a robust administration interface.Hosted onchat.omniventus.comvia Digital Ocean, this solution retains all original functionalities (image processing, conversation search, multilingual support) while integrating multi-user collaboration capabilities essential for professional environments. - L'Ecole Française
On Malt
Fullstack developer React/Symfony wordpressEDUCATION AND E-LEARNINGOctober 2023 - December 2024 (1 year and 2 months)Levallois-Perret, France- Development of PHP cloud functions- Bug fixing for the lead acquisition funnel and form (React JS / Docker / PHP / Cloud Function)- Writing unit and functional tests for React JS / PHP Cloud Functions / Symfony- Supporting marketing teams in implementing their technical needs for acquisition and sales funnels- Migration of WordPress functions and APIs to Cloud Functions- Modernization of the WordPress business application (customization of plugins and theme)- Development of a mobile application for training tracking- Integrations of Active Campaign and ZOHO APIs- Use of Cursor AI
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Education
- Expert in Information Systems and Software EngineeringIngesup2016Master en système d'information et génie logiciel
- Ecole 42 CertificationEcole 422015