The first stage was a phone interview (20mins) with HR. It was friendly and chatty and set the tone for all future communication. I was then asked to write two articles, a review of my phone and an opinion piece - no deadline and flexible topics. The next stage was an interview with the Managing Editor and the Deputy Global Head of Content at the Berlin office. The interview part lasted around 1 hour, then I was asked to do a writing task and given 20-30mins. I did not know about the task beforehand. The final stage was a Skype chat with the CCO & Founder.
Pros: Feedback was really fast after each stage, usually finding out the next day via a phone call. I'm always happy to be asked to write a lot as part of the interview process for content writing/editor jobs as it gives me the best chance to prove I can do the job.
Cons: First Skype call was a no-show, but another call was arranged quickly and a reasonable excuse and apology were given.