Booking.com Perl Developer interview questions

The complete process was rather slow, between all the stages passed about two weeks. After I applied online, the hiring manager got n touch with me and we arranged a phone interview. Then a technical phone interview was arranged, it was rather interesting. The tech interview consisted of various algorithmic tasks with questions about computational complexity evaluation. After that I've got invited to their office for face-to-face interview. This one included an interview with HR and two hour rounds with tech specialists. First one was also about algorithms and I did my presentation at it also. The second one was more general, I was asked to plan a big business case solution.