* Phone screen. I enjoyed talking to the recruiter very much. They clearly elaborated on the open position and shared many details about the teams and the company. Later on, that recruiter did a great job keeping me posted. * Hiring manager round + coding. Mainly we talked about my past experience, achievements, and challenging tasks I worked on. There was a medium LC problem at the end of the round (it was about calculating the stock price) * Another coding interview. I was given an LC-medium problem that I had to solve in 45 minutes. The problem was quite straightforward, but the follow-up questions were quite hard. * System design stage. I was asked to design a part of the Hopper functionality. Unfortunately, I couldn't narrow down the limitations and constraints, so I performed poorly during this stage. However, overall I enjoyed talking to different people at Hopper. Communication was nice and thorough. At the end of the interview process, I had a quick call with the Sr. Engineering Manager, where they provided quite detailed feedback regarding my interview performance and pointed out to the areas requiring improvement.