Lawson is co-founder and CEO of Twilio, a company that makes it easy for apps to contact you. (Ever wonder how you can send a text to your Uber driver in the app, or get one in OpenTable when your seat is ready? Twilio does that.)

Twilio went public last summer at the New York Stock Exchange, and is now worth about $2.5 billion. As it pushes to make apps communicate better, the scrappy San Francisco company has developed a culture that favors boldness and taking initiative, and frowns on perfectionism.

I caught up with Twilio's CEO at a tech conference in Barcelona, Spain to talk about his journey from curious kid in the Detroit suburbs to CEO of a public tech company. Among the things I love about Lawson's story? It's about the setbacks as much as the successes, and learning along the way.