My name is Ping, and I'm from Canada (I grew up in Winnipeg). Today I live in Berkeley, California, in the United States.

I'm a software engineer and ODK developer. I spent 7 years at Google as a software engineer from 2008 to 2015, where I worked in disaster response and led the development of Google Person Finder and Google Crisis Map. Right now I work on improving the mapping and geo functions in ODK Collect.

I often travel for work and have participated in mapping projects in Haiti, Sierra Leone, Nigeria, Central African Republic, and Tanzania.

My username is zestyping in most places, for example github.com/zestyping and twitter.com/zestyping.