I applied online. The process took 4 weeks. I interviewed at Spotify (Stockholm, Stockholm) in Feb 2017
Interview
First a casual phone interview, then a casual on-site interview with some of the team members. This was a very open and honest interview, focusing on personality and what I had done in the past. After that there was a technical interview, where I felt like the interviewer was short of time, leading to a stressful interview. It wasn't too hard though. A pop quiz with a mix of questions, and a simple whiteboard coding question.