1. PocketTutorThe app born in May 2012, It’s the first whiteboard recording app in China. The corresponding Chinese name is 掌上课堂. It had been installed on more than 70K iPad devices.2. SuperLecture4Teacher (超级讲师-老师端)A dedicated whiteboard record tools, like Educreations, Explain Everything. The tools let users can create video very easily. User can import PPT/Key note/pdf files to video, can search and import photos by a embed browser, can manipulate the embed photo by more intuitive gesture, can draw any sketch on your wishes. More Important, the video’s codec is my invention patent. The bitrate of video is equivalent of 1/20 of typical H264 codec. And the codec are vector-based, which means the the video’s resolution can be scale up to 8k or even more. And also benefit from the vector-based codec, the video’s frame rate can speed up to 120fps, with insignificant cpu usage. All of the 400K+ lines ObjectiveC code are transfered to Swift code from March 2016.3. SuperLecture4Student (超级讲师-学生端) SuperLecture4Student is for student. Student can receive teachers’ study task, can play the video. App record students’ action when students are watching the video. The statistics data are very useful for self-teaching.4. Web Service: www.chaojijiangshi.cn The web server play a role of data center and video streaming service. It’s a restful style web service. All software and frameworks used are open source, like Linux, PostgreSQL, Tomcat, etc.

Job title: Lecturer, Department of Computer Science 2011~2013Teaching lecture of compute science.

Print Instant Lottery (also known as “刮刮乐”) Business intelligence: 1) Database design & data extraction/transform/load.2) Data Mining & knowledge discovery & decision support.3) Data report & display.4) Different framework & analysis tools investigation.5) R language analysis platform investigation.Mobile Instant Lottery Project (confidential).

1) Design and develop a network-adaptive streaming framework. Both server and client player are finished by myself. The client player is based on silverlight.2) Insight on codecs and formats. such as H264、Advanced Audio Coding(AAC), MP4, etc.3) Engage in design video streaming server.

Position: Department of credit card center Job title: Software Design & Quantitative analystFinished tasks independently included: 1) Credit cards holders’ lifecycle database (SqlServer based): Designed the Shanghai district credit cards holder’s database, which can trace every customer’s card usage history (use bits to record delta variation).2) Database update routines (java based): Designed a 7X24 daemon robot, which could download zip files from remote server, and then apply the updates or insertion to lifecycle database. The robot preserved the ACID properties, and had been running for 4 months without any error/exception.3) Data mining & Web UI: Providing performance auditing / cards & holder statistics / sales & profit monitoring, etc.4) Designed a daily & weekly report daemon robot, which could create reports and deliver to subscribers.Awards:1) Excellent employee of China Construction Bank Credit Card Center.The best New Employee of Year 2008.