Amazon Web Services Software Development Engineer (SDE) II interview questions

A lot of attention is paid to leadership principles. Tech questions are pretty simple. I had 5 interviews back-to-back, one is completely leadership principles, the rest interviewers spend 20 mins on leadership principles, 30 on tech question and 10 for your questions

I applied online on their carrer portal in August and got a call from recruiter where she scheduled 7 different interviews including the Hiring managers with gap of few days between each interview. In October HR infomed me that i have cleared all the rounds and asked for few documents. After a gap of 2 weeks HR called and informed they are realining and I shouldn't expect any offer till end of December. The over all interview experience was good, in each round i was either asked to code or give a design for a problem which I enjoyed.