First I had a talk with one of the team leads. Very relaxing general interview questions and inquiries about my personal and university projects. Took about 1 hour. Take home assignment with a time frame of 4 days for solving. Was not to difficult and I was able to use my own techstack. The problem itself took me 4 hours. I was told to focus on best practices, because the problem itself would not be too hard. Another interview with a different tech lead some personal questions and in depth questions about my take home assignment, as well as technical questions about data engineering and some general questions about neuronal networks, due to my university background in ai/ml. Took about 1 hour. The atmosphere in general was very friendly and productive.