I applied online. The process took 5 weeks. I interviewed at Klarna (Berlin) in Mar 2020
Interview
I got by accident internal rejection letter which said "no go".
The guy that sent me by accident didn't even apologize not describe why "no go".
Very rude and not polite!
Interview questions [1]
Question 1
They give you a silly test to do, to build a whole monitoring stack (alerts/logs/metrics) and on top of it, whole HTTP stack with an app that you write (srsly).
This task takes team efforts but they manage to put it in the interview process.