I applied online. The process took 3 weeks. I interviewed at Emma (Frankfurt am Main) in Feb 2020
Interview
I had interviews on two days. First, I was asked to come to their recruiting Friday. I was interviewed for almost 3.5 hours by three different teams. The interview had questions on logical reasoning, interpersonal skills and some technical questions as well. After two days, I was asked to come for a second interview because I had a special request of working part time. That took place after 2 weeks and went on for about an hour.