Design and develop highly scalable DeFi platform backend services to ensure system performance, security, and scalability. Collaborate with front-end engineers and smart contract engineers to integrate back-end services with blockchain technology. Optimize backend architecture to achieve data storage, reading, and processing efficiency in high-performance DeFi environments. Implement secure APIs for communication between front-end, smart contracts, and third-party services. Participate in backend code review, troubleshoot and resolve performance or security related issues. Continuously monitor the trends and best practices in backend development in DeFi and blockchain fields.