I’m an engineer turned founder turned investor. Most recently I spent five years at Y Combinator as a Visiting Partner and Part-Time Partner, working with hundreds of early stage startups. Before that I co founded a company called AeroFS which went through YC in summer 2010 and was acquired in 2017. I’m also an angel investor. Some of the companies I’ve invested in include: Flexport, Boom Supersonic, Mattermost, Spin, Nurx, Insight Data Science, Solugen, Lively, Landed, Joy, Universe (the tool I’m using to create this site) and more. I’m a pilot (I fly single engine airplanes) and often day dream about flying