Trésor Muco

Engineered the Leapa Payment Widget using Lit (Web Components) and Vite, a framework-agnostic embed enabling merchants to go live with a single script tag, now used by 10–50 third-party merchants. Authored the complete widget integration documentation (leapa.co/docs/widgets/integration). Rebuilt the Leapa Merchant Portal into a modern, WCAG-accessible dashboard serving 500–2,000 monthly active users, including government institutions such as COUSP. Launched Dwelinn, a multi-market property reservation platform built with Next.js, Mantine UI, and Tailwind CSS, supporting online bookings across the Cameroonian and Burundian markets. Shipped an interactive payment demo at leapa.co/demo for merchants to explore the widget before integrating.

Led the technical localization and deployment of Oky Burundi, a UNICEF-funded digital health app for young women, translating a React.js and React Native codebase into Kirundi and French for the Burundian market. Resolved bugs, improved performance, integrated Firebase back-end services, published to Google Play, and deployed REST API and Admin portal on AWS.

Built an immigration paperwork management platform for the French market using AdonisJS as the REST API backend and Remix for the frontend, converting Figma mockups into a fully functional web application with public pages, a user portal, and an admin panel. Containerized the service with Docker and deployed to AWS to ensure a reproducible production environment.