and improve the initial page load speed of web applications by introducing the Code-Splitting feature. Implement unit test and component test using Jest and react-testing-library to ensure the correctness of our important business logic. Build an automated CI/CD pipeline by integrating Jenkins with AWS S3. Write technical documents on Jira Confluence to help others who are involved can easily understand the main topics. ( TypeScript, CI/CD Flow, Code-Splitting... ) Setup internationalization with FormatJS (react-intl) to provide a great user experience for a wide-ranging audience in