Typical background: Major in business/finance, or CS/engineering; whichever side you don't do, get some exposure to the other side - teach yourself to code or take an accounting basics class.
Get involved in the local startup ecosystem - volunteer at a demo day or a local tedx event, intern at a startup, something like that. Get to know a lot of people in this world. Maybe write a couple blog posts with insights about some upcoming markets.
Generally, you want to show that you get both tech and business pretty well, and also seem like someone who's eager to work hard to prove themselves and that lots of people seem to know.