**AI testing platform Development and Maintenance** - Designed workflow and relational database according to normalization and use scenarios. - Built testing engine which integrates any model or API of PyTorch, ONNX and OpenCV. - Created a website with a backend engineer for visualization. - Cross-platform deployment by using docker. - Used by NARLabs for testing AI model robustness. **AI security system Development and Maintenance** - Defined use cases with business teams and designed a multi-threaded behavior detection algorithm which can detect specific behaviors accurately in real-time. - Managed the backup images of unusual behaviors on AWS S3. - Solved the problem of network and incompatible packages on edge devices. - Used by Taiwan Taoyuan International Airport for monitoring confidential area. **Wi-Fi Data Pipeline Design and Build** - Designed relational database according to normalization and use scenarios. - Built ETL pipelines from Elasticsearch to MySQL to offer personal features, which could classify people into different types of customers. - Collaborated with business teams to design data visualization for the dashboard. - Conducted data analysis reports to illustrate the results and insight. - Used by 30+ places across the nation including tourist spots such as Taipei Zoo.