- Developed and maintained Stock Mining Service and deployed infrastructures on AWS. - Identified the weaknesses in the previous AWS infrastructure and redesigned a more reliable and scalable AWS cloud architecture for enhanced reliability and scalability. - Refactored the user system and B2B services. - Migrated Gitea and Drone to GitLab. - Implemented flake8 for Code Linter, Integrated test, Unit test and enforced Code Reviews to enhance the development quality of the team.

- Developed the core service for fund order placement. (https://www.fundswap.com.tw/trade/) - Developed internal systems such as account opening review system, TDCC and Banks media exchange system, account allocation system, and notification email system. - Refactored internal systems to identify performance inefficiencies. - Increased the internal system integration test coverage from 15% to 50%.

- Developed and maintained MES (Manufacturing Execution System) and work order systems. - Assisted in developing DDS (Data Distribution Service) M2M (Machine-to-Machine) decentralized data services. - Implemented GitLab version control services and adopted Docker for containerization. - Refactored the project language from PHP to Python.