1. Solid foundation in Java, familiar with mainstream development frameworks such as Spring Boot/Spring Cloud/Mybatis, and have a deep understanding of the mechanisms and principles behind JVM and frameworks; 2. Familiar with web development, network programming, multi-threaded concurrent programming, familiar with commonly used design patterns, familiar with relational databases, familiar with distributed caching, messaging and other middleware; 3. More than two years of experience in Internet product development, proficient in object-oriented design, in-depth study of open source frameworks, technical products, algorithms, etc. contacted in the project, and understand their underlying mechanisms and principles; 4. Proficient in Linux, with skills in system debugging and performance tuning, and strong analytical and troubleshooting abilities for difficult problems; 5. Having excellent teamwork spirit, able to utilize one's own technical abilities to improve the overall R&D efficiency of the team and enhance team influence; 6. I have a strong interest in technology, enjoy delving into it, possess excellent learning abilities, have good software engineering knowledge and quality awareness.