Patrick Cornelissen is a software developer and the founder and CEO of the Orchit GmbH and KulinariWeb GmbH. He has written several applications in various languages and platforms, and specializes in microservice-based applications and transition of monolithic applications into microservices. He has been using the Spring Framework since 2009. He has organized code retreats and open space conferences, because he likes to learn and teach new things in the field of (agile) software development.