Job Title: React Native/Expo Mobile Developer Job Responsibilities: 1 Responsible for the design, development, maintenance, and optimization of mobile solutions for the project; 2. Participate in project design, break down the mobile work of the project content, estimate the work time cycle, and identify the difficulty and risk points of implementation; 3. Synchronize information with other departments in a timely manner during the project development process, such as backend, product, design, testing, etc;