Upsell Dashboard

I contributed as a full-stack developer to Upsell (upsell.is), a restaurant management SaaS platform. On the frontend, I utilized Next.js and Material UI to build intuitive administrative tools that allow restaurant owners to easily configure customizable menus, create promotional bundles, and manage automated upselling logic. Additionally, I developed core operational interfaces, including a dynamic, real-time revenue dashboard and a live Kitchen Display System (KDS) for back-of-house staff. To support these complex features, I engineered robust backend REST APIs using Node.js and MongoDB, ensuring low-latency, real-time order scheduling and seamless synchronization across all restaurant display screens.