I applied through other source. I interviewed at IONOS (Berlin) in Oct 2018
Interview
I was asked some basic questions and then got couples of assignments in a week.
After turning them in, I had another interview to review the answers and asked follow-up questions. Those questions were very practical if there was no related experiences, it's hard to answer. But the interviewers are nice.
Interview questions [1]
Question 1
Q1: briefly interoduce your working experiences.
Q2: explain the storage stack in linux kerenl and how does it work and the corelation between each other