Chrisler GERMINAL

Development of new features for a mobile application built with Expo / React Native dedicated to aggregating orders from multiple food delivery platforms (Uber Eats, Deliveroo, Click & Collect). Development of features for a web-based POS platform using React.js with Vite.js and Chakra UI. Design and implementation of a customer loyalty system with integration of the Hey Pongo partner. Development of a POS application using Expo / React Native for the Sunmi T3 Pro device, selected after a technical feasibility study. Implementation and management of authentication using Keycloak with a refresh token system. Development of a native Expo module enabling communication between the Android application and Sunmi hardware (customer display, printer, QR code scanner, cash drawer). Production deployment of the application on the Sunmi store and support for the progressive rollout of the new hardware and software across several hundred restaurants of the Taster brand.

Led the end-to-end technical development of PhotoFame, resulting in a stable cross-platform app with real-time features used by hundreds of active users. Developed using Expo React Native, ensuring cross-platform compatibility for both iOS and Android. Integrated Firebase for real-time data management and user authentication. Utilized React Query for efficient data fetching, caching, and synchronization. Implemented Cloud Functions for backend tasks such as notifications and data processing. Applied TypeScript throughout the project to improve code maintainability and reliability. Followed coding best practices to ensure clean, scalable, and maintainable code. Used Detox for end-to-end testing, ensuring high-quality and reliable app performance. Monitored app stability with Sentry, tracking errors and performance issues for timely resolution. Sole developer responsible for architecture, implementation, and deployment.

● Build a Progressive Web App (PWA) to modernise the front-end tool used by thousands of Autodistribution sales staff for tablet and PC use. ● The project was developed using React with TypeScript for the front-end, and NestJS for the back-end. Unit tests were carried out using Jest. ● Integration of RxDB to enable offline operation of the application. ● Close collaboration with the UX/UI designers for an optimal user experience.

Skills: Environnement agile · Agile Methodologies · Scrum · HTML

Skills: Agile Methodologies · HTML

Skills: Agile Methodologies