• Designing and implementing the front-end components and user experience for MetaMask Debit Card interactions across MetaMask clients. • Developing robust and scalable backend services and APIs to manage card lifecycle, facilitate transaction processing, and integrate with financial partners. • Ensuring seamless and secure integration with Card Issuers, payment networks, and compliance systems. • Optimizing the performance and security of all Card features, handling real-time data feeds and high-volume transaction throughput.