Investor at a16z.
Personal investor in technology startups, including Kickstarter, Warby Parker, Foursquare, Flatiron Health, Kitchensurfing, Codecademy, Stack Overflow, Pinterest, Bloomreach, Optimizely, Skype, TrialPay, Sift Science, Oyster, Stripe, Behance (acquired by Adobe), OMGPOP (acquired by Zynga), Truaxis (acquired by Mastercard), DocVerse (acquired by Google), ScanScout (IPO) and Invite Media (acquired by Google).
Cofounder of Hunch (acquired by eBay).
Cofounder of SiteAdvisor (acquired by McAfee).
Software developer at Arbitrade, a hedge fund focusing on high-speed options trading.