Joe Arnold is co-founder and CEO of SwiftStack, a leading provider of object storage software. He built one of the first widely-used cloud platforms-as-a-service (PaaS) on top of Amazon Web Services at Engine Yard, managed the first public OpenStack launch of Swift after its release as an open source project. He has subsequently deployed multiple large-scale cloud storage systems. While at Engine Yard, he additionally oversaw the development of their Ruby on Rails deployment platform, AppCloud and managing the open source efforts of Rails 3, JRuby and Rubinius.