Main responsibilities: Responsible for product lifecycle management, including requirement collection, requirement analysis, product design, development follow-up, and post launch optimization. -Work closely with cross functional teams (such as development, design, marketing, etc.) to ensure alignment between product goals and business objectives. -Define the Product Requirements Document (PRD) and Functional Specification to ensure the development team accurately understands the product requirements. -Manage various tasks in the product development process, coordinate resources, and solve problems that arise. -Conduct market research and competitive analysis, propose product optimization and innovation suggestions. -Track product performance and user feedback, develop and implement product improvement plans.