- Unit test on Frontend and Backend. - API development with GO - Importing the scrum while development. - Set up a solid Angular project with linter, git-hook and clean folder structure. - Co-work with foreigner team members to achieve the project milestones.

- Supported SEO, GTM, and Tealium requirements Implemented around 40 feature requirements - Upgraded the AngularJS development environment by migrating from Webpack v1 to the latest version (v5) and from Babel v6 to the latest version (v7). - Designed clean modules and permission system using Angular. - Creating prototypes using Adobe XD and Zeplin. - Setting up Angular's coding style using ESLint.

- Analyzed 10 new system requirements for the company and wrote corresponding documents within 2 months. - Designed over 40 web views for 5 new systems simultaneously. - Developed ERP, online storage web app (similar to Google Drive), and other web-based tools using Angular 9. - Reduced unit test time consumption by 50%. - Improved the web page's FPS by 80% by implementing performance optimization techniques such as onPush, virtual scrolling, and $async. - Decreased bundle size by 30% using Webpack. - Managed the online storage web app project.

- Led a team of 5 people to complete the project for the campus GIS web app. - Developed APIs using Java Spring MVC and PostgreSQL. - Created web applications using OpenLayers, ExtJs, jQuery, Bootstrap, HTML, and CSS. - Built Windows tools using C# and .NET Framework. Prepared system documentation.