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• High performance: (1) Built a microservice performance monitoring framework, integrating Spring Boot Actuator, log monitoring and database performance monitoring. (2) For potential high-concurrency and large-data volume business scenarios (mainly multiple users submitting large amounts of report data, large amounts of indicator value calculation requests and concurrent query requests), using Kafka message queues, let risk calculation microservice asynchronously and concurrently processes risk calculation tasks.• Database: (1) Optimized SQL and code of DFSP, significantly reducing the frequency of slow SQL and table locks. (2) Used Redis to cache user login information and session data of DFSP to avoid strong dependence on the company's NUC system, shorten the response time of user authentication and authorization to within 100ms. (3) Designed and implemented a phased migration of tens of millions of risk report data from MySQL to MongoDB.• DevOps: (1) Worked with the company's operation team to jointly undertake the operation related work of DFSP, including application deployment and configuration management, log monitoring and troubleshooting, performance monitoring and optimization, capacity planning and resource management, and formulation of backup and recovery strategies. (2) Responsible for the containerization migration of applications deployed on the virtual machines of DFSP.• Team Collaboration: (1) Formulated team coding standards, configure static code scanning, and organize code reviews regularly to ensure code quality and team collaboration efficiency. (2) The DFSP project was listed as a key project of the company, and my personal annual performance was also among the top in the department.