

Mission
End-to-end design and development of a financial investment platform paired with its cross-platform mobile app. The mission spans architecture, backend, admin web app, mobile app and the content ecosystem (blog, marketing site).
The goal: deliver an infrastructure capable of handling real-time financial transactions, with a smooth investment experience on web and mobile, and a complete admin layer to drive the product.
I own the microservices architecture (Next.js 14, Node.js, PostgreSQL, Redis), the multi-gateway payment system with end-to-end encryption, and the real-time analytics dashboard. The React Native mobile app is currently under review on the Google Play Store.
Challenges
Garantir la haute disponibilité d'une plateforme financière critique
Optimiser les performances de l'application mobile sur Android entrée de gamme
Mettre en place une architecture microservices évolutive sans complexité inutile
Achievements
Key contributions during this mission.
Plateforme web Next.js 14 déployée en production sur nexuscorporat.com, avec dashboard admin et blog technique séparés sur sous-domaines.
Application React Native cross-platform finalisée, soumise au Google Play Store, également distribuée via Uptodown en attendant validation.
Intégration de plusieurs passerelles de paiement avec chiffrement bout en bout, idempotence sur les webhooks et réconciliation automatique.
Interface admin complète avec WebSocket pour les flux de données live, visualisations Chart.js et exports planifiés.
Scope
Architecture
A quick overview of the blocks and their flows.
Clients
Gateway
Services
Data
External
Impact
Synthetic measurement of produced effects.
Visuals
Collaboration
Product diagnosis, architecture, delivery. The goal stays the same: turn a fuzzy need into a clear, maintainable platform ready to evolve.