I was nominally the lead engineer on the first release of AdWords, though most of the actual code was written by Jeremy Chau. AdWords pretty much changed the world, though not, I think, for the better. :-(
If you want to know what I actually made by myself that I'm most proud of it would be this: https://graceofgodmovie.com/ (I am referring to the movie, not the web site.)
