Amazon Software Development Engineer, interview questions

The selection process includes an online assessment, followed by three interview rounds: a LeetCode-style coding round to evaluate problem-solving skills, a Low-Level Design (LLD) round to assess system design abilities, and a Bar Raiser round for overall evaluation.

1st round screening after passing ATS was online on Chime with two engineers, they asked me to implement a function that takes in an int and prints the colors of the rainbow based on which bit was set and go in a circle for bits more than 7. After 3 weeks I got the follow up to schedule 4 more interviews online. 1st was with the same two engineers as the screening, they gave a function in C++ and asked to review and refactor. 2nd was Amazon Leadership Principles interview. 3rd was with a Senior Software Engineer who asked me to code Word Search 2, a hard leetcode problem. 4th and last was with another engineer who asked the same question about reviewing and refactoring.