Amazon Software Development Engineer (SDE) interview questions

The interview consisted of three back-to-back coding rounds. Each round began with two brief behavioral questions, focusing on topics such as teamwork, challenges, or past project experience. One of the rounds involved implementing a basic HashMap from scratch, which tested my understanding of data structures and object-oriented design.

The interview process typically started with an online coding assessment focusing on data structures and algorithms. After clearing that, I moved on to a couple of technical interviews. These mainly revolved around solving real-time problems on a whiteboard or a shared doc—again, mostly DS/Algo-based. One of the rounds had a strong focus on system design, where I had to architect a scalable service. There was also a behavioral round where they assessed culture fit, past experiences, and collaboration style. In some cases, there was a final round with the hiring manager that covered high-level discussions around technical vision, role expectations, and how I would contribute to the team.