I applied through an employee referral. I interviewed at KAYAK (Berlin) in May 2017
Interview
A series of interviews with different members of the team, some code tests with Java, Javascript and CSS. It wasn't too difficult but there were a lot of interviews.
It took quite a while to then know from them and they give absolutely no feedback at all.
Interview questions [1]
Question 1
White board questions and coding exercises on a shared screen.