I applied online. The process took 1 week. I interviewed at Discovergy (Heidelberg, Baden-Wurttemberg) in Aug 2020
Interview
The interview process was:
short basic questions -> Programming test -> ending. Took around an hour.
Basic questions they asked introduce yourself, why you want to join
Then they explained what they do, and what I will do.
Programming questions were
they give a code and you have to find the errors.
than they give you a question and you have to program in front of them.
Recommend to practice programming questions before an interview
Interview questions [1]
Question 1
Find the error in this code
Read the question and explain how you would program it.
Program it now yourself.
You could choose any programming language you want. (C, python, C++ ...)