Amazon Software Development Engineer, II interview questions

1 phone interview - just to describe the process 1 online Hackerrank test (complete within 90 minutes) - the code must compile and run (has to be C++/C/Java) 1 interview day onsite - 4 45 minute interviews - all of which are technical

First I had to fill a form sent by the recruiter asking for my information and current salary. Then I had to write a HackerTest and answer 3 questions. Then there was a phone chat (I wouldn't call interview) just to explain the in-person interview process. Then I went through 4 1-hour interviews. All of them were technical and asking to solve different programming problems.