I applied in-person. I interviewed at ModuleWorks (Aachen)
Interview
First two interviews were okay, everyone acted professional and in a mutual courtesy. They asked me about some basic geometrical problems and to correct some faulty C++ code snippets. Then, they gave me a one week project. On the third interview, there was a person from upper management, an HR and engineering team leader.
Interview questions [1]
Question 1
How did you hear about us?
How would you solve these geometrical problems?
How would you correct these C++ codes?