Amazon Software Development Engineer interview questions

After applying online, I was asked to submit a solution for a challenge problem sent to my email, afterwards there was 3 screening phone calls, then I went to an onsite interview (3 technical interviews, 2 HR). During the interviews I was asked about programming languages, networking, threading, troubleshooting production systems, data structures and programming puzzles.

I applied online and emailed a manager contact listed in one of the online postings. I had a brief email conversation with the manager and he setup a phone screen for me with another manager on a different team. I had two phone screen interviews about a week apart. Each phone screen lasted around 60 minutes and required me to write code into a web-browser for the interviewer to view. A week or more after the final phone screen, an in-house interview was scheduled. The in-house interview took almost all day and consisted of five hour long interviews with different engineers asking coding questions and a one hour lunch discussion with the hiring manager.