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Amazon SDE interview process

I am giving you a broad overview about interview rounds and some tips for preparation which should help.
  1. First round is Problem solving and coding. You will be given a simple algorithmic problem to solve and be asked to write code for it. Basic problem solving skills and coding knowledge will help you clear this round easily. Sample question topics are Strings, arrays and lists. You will be asked to solve the questions and write code for it. Expectation are solving problems logically, knowing about time/space complexities and writing clean code. When I say clean code - it simply means readable, understandable code without any bugs. 
  2. Second round is Data structures and algorithms. You are expected to solve an algorithmic problem using right data structures in an efficient way. You may/may not be asked to write code to solve it. Question topics are Linked lists, trees, graphs, hash tables, Sorting, Divide and conquer, Dynamic programming and Backtracking. If your code is not efficient in terms of space and time complexities, it is tough to get through
  3. Third round is OO and systems design. You are expected to demonstrate your object oriented programming and design skills. You will be given a simple problem like "Design a traffic light system" and expected to come up with classes, their interactions and how you will be designing such a system in real life. 
  4. Fourth round is Hiring manager round. You will mostly get behavioral questions, why are switching companies/roles, why do you want join amazon, why are you leaving your current company, etc. You might want to give positive impression and make him believe that you will do the job once hired. You will also be tested on Amazon leadership principles.
  5. Fifth round is Bar raiser. Your bar raiser may pickup questions related to any of the above round. You will be probed more and more and be tested if you can raise the bar at amazon. If you are good at all above said competencies and doesn't have arrogance, it is easy to clear. 
 

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