Job responsibilities of Tech Lead: 1. Based on product requirements, complete code development work to ensure the robustness of the code; 2. Organize the R&D team, assign tasks, ensure project progress, and ensure team code quality; 3. Participate in architecture discussions, propose reasonable suggestions, and participate in implementation; 4. Independent deployment of system services, online operation and maintenance support; 4. Technical accumulation, document organization, training organization, and code review organization