General partner at a16z.
Personal investor in technology startups, including Kickstarter, Warby Parker, Stripe, Pinterest, Foursquare, Flatiron Health, Bloomreach, Stack Overflow, Optimizely, Zipline, Sift Science, Behance (acq by Adobe), TrialPay (acq by Visa), Smart Things (acq by Samsung), OMGPOP (acq by Zynga), Truaxis (acq by Mastercard), DocVerse (acq by Google), ScanScout (IPO), Invite Media (acq 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.