At first, I was contacted by a company who is responsible for recruiting some people for Booking, after the first screening, I was passed for the next conversation with HR, it was something very smooth and good to take, they needed to know about my plans, my expectations about Amsterdam and Booking. After it, I passed for the technical interview with a Senio software Engineer and a Leader Developer, they were very helpful by sadly I didn't pass through the technical test, the both testes were Java Puzzles, they both can be solved using data structures, the first I was super confident, I did implemented DFS to solve it, and the next one is supposed to be Max Heap, but I didn't get it.