Job responsibilities: 1. Data collection: Firstly, collect and organize data related to risks. This can include user information, transaction records, behavior patterns, historical data, etc. 2. Feature engineering: After data collection, feature extraction and processing are performed on the data. This step aims to extract meaningful features from the raw data and prepare for subsequent model training. 3. Model training: Train data using machine learning algorithms or deep learning models. These models can be established based on methods such as supervised learning, unsupervised learning, or reinforcement learning. 4. Risk assessment: Conduct risk assessment and prediction on new data through a trained model. The model can provide corresponding risk probabilities or classification results based on the characteristics of the input data. 5. Decision making and feedback: Based on the results of risk assessment, the system can automatically trigger corresponding decisions and control measures. For example, refusing a transaction or taking other restrictive measures to reduce risk. At the same time, provide feedback on these decision results to users or relevant parties. 6. Monitoring and optimization: Continuously monitor the performance and results of the system, and adjust and optimize the model according to the actual situation. This can include adding new features, improving algorithms, updating data, etc. 7. Feedback: Through sharp insights into data, we can deeply explore the potential value and demand of products, design and optimize strategies and frameworks, and provide more valuable products and services. Through technological innovation, we can promote product growth.