General partner at a16z.
Personal investor in technology startups, including Kickstarter, Stripe, Flatiron Health, Warby Parker, Zipline, Pinterest, Foursquare, Discourse, Stack Overflow, Optimizely, Sift, Behance, TrialPay, Smart Things, OMGPOP, and others.
Cofounder of Hunch (acquired by eBay).
Cofounder of Founder Collective.
Cofounder of SiteAdvisor (acquired by McAfee).
Software developer at Arbitrade, a hedge fund focusing on high-speed options trading.