Christian has more than 12 years of project experience in the Java Ecosystem. In the past 10 years, he worked with well-known companies such as Deutsche Telekom and BSH. He focuses on the design and implementation of highly scalable and durable software architectures, as well as on how to smoothly migrate legacy systems. Christian’s roles so far have been Senior Software Engineer, Software Architect, as well as Team Leader, and last but not least, CTO of his IoT start-up. In the last 7 years Christian also looked into other JVM languages such as Groovy and especially Kotlin, which he very much enjoys and successfully worked with in his last projects.