Amazon Software Developer interview questions

S/W Engineer position. 3 times phone interview, 1 hour each. one full day on-site interview. It was most difficult technical interview I ever had. Even tougher than Google. I'm even told, here is a problem that 9 out of 10 interviewee fail to solve. I was asked to write a code for 10 of those level difficulty questions.

There were 5 rounds in total which included 1 written test. Most of the SDE-1 rounds include Algorithm and Data structures testing, and if you are great at it, you are in. They will monitor your coding capabilities and problem solving capabilities as well. Computer Science and Object Oriented rounds are usually not given importance for SDE-1s.