I applied for the position before christmas, and got the letter 3rd of january that i have 2 phone interviews 10th of january. So i didn't have a lot of time to study. The first interview was really good, basic questions about the work experience, projects. After that there were technical questions. Like when do we use arrays and when do we use linked lists. Couple of other theoretical questions. Then the interviewer asked how to find if there are numbers that repeat in an array. I had to give three different solutions before we came to the one that has the best order complexity. So my advice is to study the big O notation. Then she asked how to reverse a singly linked list. i gave the answer. The second interview was more difficult for me, because i didn't study BSTs at all, i focused completely on hash tables. But the guy asked of how to find repeated characters in a string, so i had to give 2 solutions. One was less space consuming but more time consuming, the other one was the opposite. but apparently there was one solution that was perfect, didn't get it. The other question was about printing the BST in level order. Couldn't do it... but overall both interviewers were polite and helpful, so i guess studying the data structure book is very helpful.

My Amazon interview process started with an online assessment that included behavioral questions based on Amazon’s Leadership Principles and a coding assessment. After passing the online assessment, I moved on to the in person interviews. My first interview was with the hiring manager and focused mostly on behavioral questions tied to Amazon’s Leadership Principles. We also discussed my previous experience and projects. Toward the end, I was given a system design coding problem. After that, I interviewed with a lead engineer and another engineer. That interview was more technical and included a LeetCode style coding problem. I had to explain my thought process, work through the problem, and discuss my solution with both engineers. Made it to the final round of interviews