Job description: 1. Have a deep understanding of exchange fiat currency, C2C and other businesses, quickly define and analyze problems based on business goals, and be able to output and implement solutions; 2. Based on product business and user lifecycle, build services to attract new customers, promote activity, convert and other goals, and be responsible for growth indicators; 3. Identify opportunities in the data, develop product strategies related to customer acquisition, acceptance, and motivation, and implement them on the ground; 4. Insight into the existing problems and challenges of the product, combined with industry development trends,