Denys Makogon is a senior Python software engineer at EPAM and works in Kharkiv, Ukraine. He is a writer and developer by day and a reader by night. His passion is helping people bring their technical skills up to the next level along with developing skills that would become key features in obtaining a story of success for both sides—developers and customers. He is an IT "tough guy", cloud-native application developer, and has started work as a software architect in cloud-based solutions. He is the founder of the Project Invader open source organization, mainly focused on developing and designing platform and software as a service applications for OpenStack. He is a contributor to the OpenStack DBaaS and the CloudValidation open source framework. He is a founder and technical project lead of the BeeDB project. He has worked on OpenStack Cloud Applications Development (http://as.wiley.com/WileyCDA/WileyTitle/productCd-1119194318.html).