John is CTO & Co-Founder of LaunchDarkly, the leading feature management platform. John was a development manager at Atlassian, where he led engineering for the Atlassian Marketplace. Prior to that he was an architect at Coverity, where he worked on static and dynamic analysis algorithms. He has a Ph.D. from UC Berkeley in programming languages and type systems, and a BS from Harvey Mudd College. He climbs rocks, ice, small boulders, and the occasional building.