Responsibilities: 1 Collect, clean, and annotate customer service data, including user conversations, question types, and answer content, for use in training machine learning models. 2. Monitor model training to ensure good performance on customer service data, in order to solve user problems more quickly and accurately. 3. Evaluate the performance of the model on customer service data, identify its weaknesses and areas for improvement, in order to enhance the quality of customer service. 4. Identify user issues, including technical support, account queries, and security concerns, and provide solutions to enhance user satisfaction. 5. Record customer service data, training, and evaluation processes for sharing results and recommendations with the customer service team.