My first interview was with an HR representative, and it was a really nice conversation. We discussed what I knew about their company, why I wanted to join them, my preferred work environment, etc. After that, he explained the company, project, and position to me. In the next step, I had an interview with 2 people from the engineering team, they asked several questions about .Net Core and C#. After this meeting, they sent me a challenge – a .NET Core project. The requirement was to implement an endpoint and calculate the distance between two points by supporting the user locale. I really enjoyed the challenge. I almost spend two days on the challenge. After sending my challenge, it took several days for them to review it(it was at Christmas time). I received another invitation for the next round of interviews. The next round involved two other people (I think two Lead developers). Initially, they asked me several questions, which you can see below. After finishing the questions, they asked me to share my screen, and we discussed my solution to the challenge. I believe they scrutinized my challenge in detail and they asked several questions regarding my assignment and we also discussed other parts of my implementation. After checking my challenge, they presented an algorithmic question on an online website, it was about finding the maximum sum in subsets of an array. After solving and discussing my solution, they asked several questions about time and memory complexity, and also some general data structure questions. After this part, an HR person joined the meeting and asked several HR questions such as different situations how I made decisions, etc, I should mention this interview takes 2 hours so be prepared well for it and just be yourself.