I applied online. The process took 6 weeks. I interviewed at Booking.com (Amsterdam) in Sept 2017
Interview
The interview process was more or less similar to what others have mentioned. The whole interview had 6 rounds ( 2 HR + 3 Technical + 1 General discussion with senior member).
Round 1: It started with a telephonic discussion with a recruiter ( approx 30 minutes) about my background. He discussed about some of my data science projects and explained about role and company. After that I got a mail to schedule for a technical interview.
Round 2: It was also a telephonic interview with 2 Data Scientists. In this interview, first we discussed about one of my projects in detail. After that they gave me a case study to solve.
Round 3,4,5,6: All these round took place at booking.com's Amsterdam HQ. It was a 4 hour interview. First it was general discussion with a HR about the company and living in Amsterdam. Second and third round was a technical interview with 2 Data scientists. The format was same as Round 2 interview. It had 2 case studies. Please focus on case studies as these are most important factor in your selection. Fourth round was a general two way discussion with a senior member of the team.
Interview questions [1]
Question 1
1. Motivation to join Booking.com?
2. What is the one thing you will miss from your current organisation?
3. Devise a method to tag a hotel listing as "Value for Money"?
4. How will you minimise the number of users who are booking hotels but are not staying?
5. How can you optimise/increase the number of languages a customer service department is able to serve? Constraint is to maintain the same quality as before with same budget and same number of customer representatives as before?
6. If you have to give a seminar at booking, what would be your topic and why?
I applied online. The process took 3 months. I interviewed at Booking.com
Interview
Interview process was solid and relevant. There were three rounds: one technical, one business case directly tied to the role, and one focused on company alignment. Most rounds included case studies, which tested problem solving approach along with technical knowledge. The conversations were clear and to the point. Main focus was on how you approach problems and whether that fits with the company values. Reading about the values and culture beforehand is important
Interview questions [1]
Question 1
Follow up questions from case study, questions about experimentation
30 mins phone screen with recruiter, next round will be with 2 data scientists and discuss on a business case. Seems like they did have some opinion on that question, it was not like a open discussion.
I talked with manager and recruiter. Some questions about personality and some about technical skills. Some were more difficult then others. The people were quitte nice. But a lot of competition