Most of my days are spent on Android, iOS and cloud computing. My favorite programming language is Go and Swift. I also program(or used to) in C, Java, Dart, Javascrpt(although I hate it), and Python.
I did my PhD study in CUBoulder. During that time I was constantly hacking on random stuff and have created several designs, proof-of-concept implementations, and published a few papers.
I spent three summers working at Google Research, Android, and Google Ads team, during which I am very fortunate to have the opportunity to work with many world-class programmers/researchers. I did the very first prototype version of the Official Gesture Keyboard, which is then introduced in Android 4.2 system.