■ Designed database schema and wireframes.■ Deployed JFrog on Centos 7 for a customized repository.■ Built template project based on Spring MVC, Spring Security and Maven.■ Acted as team leader, managing 5 junior Software Engineers.■ Wrote teaching materials for Spring MVC framework, system environment settings, etc.■ Negotiated with other departments about requirements and scheduling.■ Used Java FTP Client to upload videos to CHT CDN and cascaded their API.■ Synchronized Youtube channel videos through Youtube API.■ Transferred voice records to Text using Google Cloud Speech-to-Text.■ Analyzed user behavior through AOP with HttpSession process.■ Cascaded ECPAY third-party payment system.

■ Developed front end and back end using Spring MVC framework and Bootstrap 3.■ Deployed DB, Tomcat on the Google Cloud Platform.■ Created iOS native app with WebRTC.■ Used WebSocket to implement a chat room and make video calls by WebRTC.

■ Developed front end and back end using Spring MVC framework and Bootstrap 3.■ Used SSO + CAS with Spring Security on back end.■ Embedded iOS, Android WebView for front end DWR interface.■ Analyzed user behavior through AOP with HttpSession process.■ Cascaded O'Pay third-party payment system..■ Helped maintain and develop iOS app.

■ Developed website based on Spring MVC framework.■ Encoded JSON content by MD5 through API.■ Negotiated with other departments about file structure and content.