João Galeazzi developed an interactive ButtonCard component for the AGES-WimBelemDon/frontend repository, focusing on enhancing data visualization and user engagement on the TechDemo page. Using React, TypeScript, and Material UI, he engineered a UI element that displays names alongside frequency percentages and allows users to toggle presence or absence, providing a clear visual status indicator. The component was fully integrated and validated within the existing frontend architecture, emphasizing maintainability and user experience. While the work was limited to a single feature over one month, it demonstrated a solid grasp of frontend development principles and effective use of modern JavaScript and CSS.