Amazon Software Development Engineer interview questions

I got 1 round phone interview, and 3 algo questions in it. Then I was brought to do onsite. I met 5 people from 9:00am to 1:00pm. Everyone came to ask me algo questions and Object oriented Design questions.

The interview process was incredibly quick; the first email to an on-site interview occurred within a matter of weeks. Being an international prospect, I went through 2 rounds of technical phone interviews before being offered an on-site interview. Each phone interview consisted of a couple technical questions, with coding done on a virtual whiteboard. The questions heavily emphasized data structures and class design. The there were 4 on-site interviews packed into a single 5 hour day; 1 HR interview and 3 technical interviews. Again, most of the technical interviews revolved around a wide and deep knowledge of data structures, with some algorithmic questions thrown in. Big-O run times were also quite important. Overall, I found the people to be friendly and the work environment to be very laid back. Most of the walls were glass or whiteboard allowing for easy collaboration between team members.