Job responsibilities: 1 Responsible for LLM based Python/GO backend development and platform system architecture, implementing AI engineering applications. 2. Responsible for system development based on Agent framework and RAG research and development. 3. Responsible for model performance and system optimization, monitoring and deployment to improve performance and stability; 4. Participate in the development of some AI functions and provide suggestions. 5 Work closely with the production and research team to ensure that LLM functionality meets the requirements;