1. Engaged in the development of financial Internet products; 2. Lead the completion of technical solution design, responsible for core code development, and ensure the effective implementation of technical solutions. 2. Work closely with product, testing, and operations personnel to deliver high-quality products through rapid iteration; 4. Qualifications for guiding junior staff development: 1. Bachelor degree or above, more than 5 years of Java development experience, preferably Internet finance experience; 2. Proficient in Java programming language and object-oriented design, proficient in and reading JDK related source code, understanding JVM principles, able to actively participate in JVM tuning, familiar with high concurrency application development; 3. Deeply understand dependency injection (DI), aspect orientation (AOP), and various design patterns, and have application experience; 4. Deeply understand the principles of relational databases, proficiently use Oracle and MySQL databases, understand database optimization, and have practical experience in balancing performance and maintainability; 5. Familiar with MVC pattern, with development experience in Spring MVC, Spring Boot, Mybatis, Hibernate or other similar frameworks; 6. Familiar with commonly used NoSQL databases such as Redis and MongoDB, familiar with message queues, and experience in big data is preferred; 7. Familiar with SOA architecture and microservices, with experience in using Rest, Dubbo, Spring Cloud, and related security technologies. Familiar with Linux systems, shell programs, and Linux environment deployment, with experience in system level tuning preferred; 9. Familiar with agile development, with strong version management and code standardization awareness; 10. Have good communication skills, strong learning ability and team spirit, focus on efficiency, and have the ability to withstand pressure