Role Summary

We are looking for an experienced Senior Java Engineer to take a leading role in the design, development, and optimization of our backend services. You will be responsible for building high-quality, maintainable Java code, ensuring system scalability and reliability, and collaborating with cross-functional teams to deliver critical business solutions.

Responsibilities

• Participate in the design, development, and optimization of backend service systems, writing high-quality, maintainable Java code. 
• Design and develop system interfaces, ensuring high availability and scalability of services. 
• Support business teams with requirements analysis and technical solution reviews, offering feasibility and optimization suggestions. 
• Collaborate closely with frontend, QA, and DevOps teams to ensure smooth launch and stable operation of business systems.

Requirements

• Bachelor’s degree or above in Computer Science or a related field.
• 7+ years of Java backend development experience.
• Proficiency in Java and familiarity with mainstream development frameworks such as Spring Boot, Spring Cloud, MyBatis.
• Solid understanding of TCP/IP, HTTP/HTTPS protocols, and experience with RESTful APIs, WebSocket, SSE.
• Familiarity with network exception handling and performance tuning techniques such as connection pool optimization, rate limiting, circuit breaking, and retry mechanisms.
• Practical experience with microservices architecture.
• Experience in large-scale systems or high-concurrency projects.
• Familiarity with integrating OpenAI / ChatGPT or similar AI APIs and proxies.