I'm the proprietor of Speedshop, a Ruby on Rails performance consultancy. I've also worked for several startups, including Craft Coffee (YC S14), Unwind Me (YC S14), Scaffold (500 Startups), Branch (now a division of Facebook) and many others. I'm a contributor to several open source projects, such as Ruby on Rails and Sentry. I recently gave a talk at Railsconf on ultra-tiny Rails apps.
I appeared on Shark Tank, ABC's primetime entrepreneurship show, when I was nineteen.