Joe Duffy is co-founder and CEO of Pulumi. Prior to founding Pulumi, Joe was a longtime leader in Microsoft’s Developer Division, Operating Systems Group, and Microsoft Research. Most recently, he was director of engineering and technical strategy for developer tools, where part of his responsibilities included managing the groups building the C#, C++, Visual Basic and F# languages. Joe created teams for several successful distributed programming platforms, initiated and executed on efforts to take .NET open source and cross-platform, and was instrumental in Microsoft’s companywide open source transformation. Joe founded Pulumi in 2018 with Eric Rudder, the former CTO at Microsoft.