Amazon

First round OA. Second round is a 4-hour back-to-back interview with senior engineers and group leadership, targeting mainly algorithms and data structures. The first two hours are general; the last two are technical.

Firstly, interviewers ask you to introduce yourself and then ask questions regarding Leadership principles. After the first round, interviewers give you some coding problems to solve. It takes about 2-3 hours.

Step 1: 45 min (20 min Behavioral Questions + 25 min 2 coding questions - medium level) Step 2: 45 min (OOP design), describe my data structure and algorithms. Step 3: 45 min Behavioral Questions with Principal Engineer, Amazon 12 principles.