• Architected a multi-application React ecosystem for a digital business card SaaS platform built around NFC card technology, serving both individual professionals and corporate clients across Tunisia. Built an interactive profile builder dashboard using React 19 with a drag-and-drop layout system, enabling users to fully customize their digital card: personal info, social media links. • Delivered a Next.js 15 e-commerce storefront with SSR/SSG for SEO optimization, integrated with Konnect payment gateway for NFC card purchases, directly synced with the user dashboard ecosystem .