Responsible for the development, maintenance, and management of PHP projects, including developing high-performance websites with PHP, designing product features, detecting and handling bugs, and writing technical documentation.Involved in the overall planning, feature design, development, system testing, and implementation of new projects.Write development documentation for new product features and design product databases.Design and develop new feature modules and management tools based on requirements submitted by the after-sales team.Regularly communicate with operations and after-sales team to gather feedback and address issues.Provide technical support based on feedback from relevant departments, maintain the stable operation of business system code, and handle system bugs.Responsible for upgrading, iterating, and maintaining product feature modules.