I applied online and received an answer the next day. They informed me they liked my resume and provided a case study to solve within three days.

I completed the case study the same day and received a positive review about four to five days later, along with an invitation for a Skype interview one week later.

The interview went very well. I really liked the interviewers because they were relaxed and friendly. Besides discussing my experience, they asked some cool logic questions.

After the interview, I waited about a week before being invited for an on-site interview, with costs covered by Trivago.

I really liked the office and the interviewers. This final interview lasted about three hours. The first two hours consisted mostly of questions and coding challenges. The last hour was with the head of the department, where we discussed Trivago, my experience, and my motivation for working there.

After this interview, it took more or less three weeks to receive a final answer.

Why should we choose you over the other applicants?

In a building with 10 floors and four elevators, how would you implement an efficient algorithm to manage the elevators?