1. Responsible for the full process testing of the company's product line, developing testing plans, establishing and maintaining testing environments, conducting comprehensive and standardized functional/performance testing of the system according to the testing process, and ensuring the quality of product launch; 2. Responsible for the development and application of testing tools, automation systems, and quality assurance infrastructure, conducting continuous integration optimization to improve testing efficiency, and providing quality support for rapid iteration of the team; 3. Quickly understand product requirements, deeply understand system architecture, actively communicate with products and developers, help analyze and solve problems, and summarize the progress of testing execution; 4. Influence and promote the quality awareness of the entire team; 5. Track and locate feedback issues, support the team to respond quickly, and assist in resolving them;