• Developed a web application project called Barcode Printing Qualification Certification ManagementSystem, a business website for applying, checking and authorizing barcode printing qualification• Used SSM(Spring+SpringMVC+Mybatis) framework with HTML JavaScript jQuery AJAX for designingUI, Java for backend, MySQL for data management. SVN for version control• Implemented the manage system of enterprises, centers, users, permissions , the process of applying,checking and authorizing.• Updated an Android application project called SE Fly, a general aviation Android app providing servicesincluding monitoring airplanes, replaying flight route, managing flight plans• Used Java to implement the function of guest login and automatic login