First of all you have to create 2 screen application and show best architecture and coding skills. Next step is technical interview. Developers are very friendly and that more looks like a talk with colleges. They ask about everything. Language, architecture, best practices. Then you are invited to Munich to the sixt headquarters to have in person interview with developers, managers and HR. And again they will ask about anything to be sure you are the right person for the team. In general everything was fine and I liked company and team. Everyone was very friendly, developers asked smart questions.