Contributed to the American Heart Association's Heart Walk platform, a fundraising and event-registration portal supporting their nationwide walk events. Built reusable, accessible React component libraries to maintain consistency across event pages, registration flows, and donation features. Integrated REST APIs to connect frontend components with backend data, ensuring reliable data flow throughout the platform. Worked with Next.js, Tailwind CSS, and Redux to deliver a responsive, maintainable frontend architecture that improved performance and development speed for the team.