Developed a comprehensive app marketplace for Foundation, catering to creators and collectors of digital art. Designed and implemented a user-friendly interface using modern web technologies such as React.js and Node.js. Integrated robust authentication and authorization systems for secure transactions. Implemented features for browsing, searching, and purchasing NFTs (non-fungible tokens) seamlessly. Incorporated payment gateways and smart contract functionality to facilitate secure transactions. Collaborated with a cross-functional team to deliver a scalable and efficient solution, ensuring optimal performance and user satisfaction.