Amazon Software Development Engineer Intern Interview Questions, Process, and Tips

Round: Test
Experience: There were 20 logical reasoning questions - some of them were general questions testing math skills, others tested knowledge of core computer science concepts. The coding questions were both moderately difficult and took quite some time to solve.

For the coding questions, I got one correct, and one only halfway through, so it did not pass for all test cases.
So for the second one, I added some comments explaining what more logic should be added and what is the missing piece because of which test cases may fail.
Tips: The advice I would give is to write your code as clearly as possible and with comments as well, so that the examiner has to spend the least amount of time in understanding what you're trying to put across.
Duration: 2 hours
Total Questions: 22

Round: Technical Interview
Experience: This round involved 2-3 questions and there was no hurry about time, the interviewer was patient. First thing is to ask questions about the question, clarify any doubts before starting to write any code. After getting clarity on the questions, I was silently thinking for 2-3 min for each question, how to approach it and how to solve. Then I started working out on paper and simultaneously explaining to the interviewer about the approach.
Tips: Be calm, think clearly, ask questions, and communicate your thoughts, ideas, possible alternate approaches.
The interviewer wants to know how you think, how you analyse, eliminate options. So if you give them just the answer, they'll not get all that info, so if you're more verbal, it may add as an advantage.

Round: Technical Interview
Experience: This round went on for very long, about an hour or so. It took 5 min to first understand the question, what all I have to figure out etc. Then I thought for 3-4 min and presented my understanding. There was lot of back and forth, the interviewer was giving feedback on my approach, and I was iterating my solution.
Finally we arrived at a satisfactory solution which consisted of three parts (the interviewer was pointing out flaws, pointing out edge cases etc and checking how I handle such cases, such situations).
Then I was asked to write the code for each of these three parts of the solution. With that this round concluded.

Skills: Programming, Communication, Logical And Structured Thinking, Reasoning Ability, Diagrammatic Reasoning
College Name: Amrita School Of Engineering, Coimbatore

Round: Test
Experience: There were? 20 MCQ questions and 2 coding questions of moderate difficulty.
The MCQ questions - part were general logical puzzles, part were related to computer science to check understanding of concepts.
The 2 coding questions were regarding? data structures - I did not get both answers correct, I got only one. But for the wrong answer which I had worked through partially I left comments explaining what I had done so far and what was the missing piece. I feel that if your code is easy to follow and to read, then you have put across your thoughts to the examiner. I think I got selected in this round because of that.
Duration: 2 hours
Total Questions: 22

College Name: Amrita School Of Engineering, Coimbatore