• Implemented Restful API using Java (Springboot) and SpringCloud for Microservices.• Analyzed customer requirements and translated them into system architecture diagrams, sequence diagrams, workflows, and detailed interfaces.• Troubleshooted for system, from infrastructure to software components, releasing patches, ensuring system reliability, consistency, availability, and security.• Used Github Actions as CI/CD platform to automate build, test and development processes.• Developed comprehensive unit tests for backend controllers and business logic using Junit to ensure code quality.

• Collaborated in system design and development under the regulatory policy.• Estimated development tasks and planned and broke more extensive features into stories/tasks for the team.• Successfully deployed a project across multiple companies, each with different networks and Maven repositories.• Authored scripts to verify files, resulting in a notable improvement in maintenance efficiency by approximately 60%.• Prepared technical documents and operational manuals for the system, helping others understand and use the system quickly.• Leveraged Jenkins as a CI/CD tool to automate build, test and deployment processes, ensuring consistent, reliable software delivery.

• Participated in technology selection, ensuring technical standards and interface specifications.• Produced estimates for routine development tasks.• Led the development/testing plan, and executed system configuration and deployment tasks, ensuring smooth implementation. • Using Junit to develop testing tasks, investigate and fix defects, ensuring system reliability and availability.• Implemented strategic refactoring of core system functions, resulting in a notable 40% improvement in code maintenance efficiency.

• Collaborated closely with operations staff and translated the promotion report offline process into the system, resulting in a notable improvement in work efficiency for operations personnel. • Contributed to the service-oriented architecture of the promotion system by integrating trade, coupons, goods, and other systems, effectively reducing system coupling and facilitating more straightforward maintenance. • Participated in the performance test (peak QPS 27W), investigating abnormalities, optimizing the system, and tuning JVM parameters. • Refactored legacy code, significantly reducing interface time and enhancing overall system performance and user experience. • Used Jenkins to build, test and deploy.