President & CEO of Y Combinator
"Writes software, dreams."
2008 - Present
President & CEO of Y Combinator, working with thousands of startups including Coinbase, Instacart, and Rippling when they were just one or two people in a garage.
2008 - 2011
One of the first engineer/PM/designers at Palantir, building foundational technologies for data analysis.
2008 - 2012
Cofounder of Posterous, a simple blogging platform acquired by Twitter in 2012.
2009
Built Bookface, Y Combinator's internal social network, fostering collaboration among startup founders.