Dennis is currently a Director of Development Technologies at Apple. He joined Apple after selling his company (buddybuild) in Jan 2018. Buddybuild is a mobile focused continuous integration, deployment and user feedback platform used by tens of thousands of development teams around the world. Prior to buddybuild, Dennis held product and engineering leadership roles at Amazon, building and running the teams responsible for the Silk Web browser UI for the Kindle Fire Tablet and Fire Phone devices. Prior to his time at Amazon, he spent 9 years at Microsoft and founded the Azure teams focused on defining, building, delivering, and operating the Messaging, Access Control and Workflow offerings of Microsoft’s cloud services platform.