- Responsible for implementing new features and maintaining current features for food delivery service based on react and redux ecosystem. - Main contributor for honestbee membership. - Provide corresponding membership payment ow integrated with BE developers and payment gateway services in dierent countries. - Build customed user ow pattern for the cooperation between the department stores like Qsquare and honestbee. - Implement tracking service to analyze user behavior and refactor current ow to improve user experience.

- Lead to build front end development including dev and production environment by webpack. - Scaold project structure for React.js and Redux ow. - Make coding style consistent for readability and reusability by eslint and prettier. - Experienced with framework based on React.js like React Toolbox and React Bootstrap. - Involved in code review and API discussion.

- Responsible for front end development based on React.js library. - Implement unidirectional data ow in React with Redux. - Construct style in React with CSS module. - Run test tasks with Karma, Mocha and Chai. - Version control by git flow.

- Development of user interface for web site / application by HTML5, CSS3 and JavaScript - Help optimize AFT ocial website including youtube API implement and RWD modication. - Implement Angular(1.x) on projects. - Functional programming concept in Javascript. - Enroll course CS50 provided by Harvard University on edX.

Quality control for semiconductor product quality in ion implantation and oxide Im process

Etching solution development for polishing process and trouble shooting for root cause of defect