Job description: 1. Able to define key indicators and output results based on business scenarios, work closely with the operations team, use data science methods to solve practical business problems, and create greater value for the business; 2. Obtaining data through APIs, ensuring accurate and stable predictions of relevant results through data analysis and algorithm models; 3. Ability to think from the perspectives of business and users, promote product optimization through data analysis, machine learning and other methods, and improve service experience and operational efficiency;