Contacted via Indeed.com.

Phone interview with recruiter: Nothing special about it; it was primarily to understand your goals, your interest in joining Booking.com, and your willingness to relocate.

Then, a phone screening with a developer, which included live coding.

There were three questions:

• A file system search function (already posted here previously).
• A basic SQL question involving joining two tables and grouping results (also posted here previously).
• A business-related question about priorities.

Most questions were normal. However, they were trying to twist them a little to ensure you have a deep understanding. For example: Will this code run forever? What about if we change to recursion? What about memory? etc.