Dennis Yu is a search engine engineer who built the analytics at Yahoo!

Nowadays he's the Founder and CEO of BlitzMetrics, where he has spent a billion dollars of other people's money on Facebook ads while learning how to build a certification for digital marketers.

You can watch him on CNN, NPR, the LA Times, Wall Street Journal, and other media outlets. And he's going to hire another 200 people this year, since his goal is creating as many jobs as possible.