I applied online. The process took 2 months. I interviewed at Sonar (Berlin) in Jul 2021
Interview
The interview was a multistage process. Stages were usually couple days apart depending on interviewing developers schedule.
Introduction,
One-to-one short coding (relative to absolut path conversion),
Two-to-one 4 hour coding with sprints simulation (extend a console based calculator),
HR and culture fit talk and
Finally a meeting with the CEO.
It took couple of weeks. The CEO was hard to catch .
I didn't accept the offer because the offered salary was too low. Otherwise, the company and people looked great.