I interviewed over a 6 week period. I had a scheduled Zoom screening call which I turned up to but the interviewer failed to show up. Subsequently, I was asked to reschedule this myself in their calendar. I had a 30 minute call which seemed positive, and was invited to a 1 hour hacker rank test which had a few questions. This was on the more difficult side, however I managed to answer all the questions correctly within the time frame. I was told 3 days later that I was invited to present a case study and technical interview. This case study required quite a lot of research and presentation from external sources. I was given 1 week to prepare and this was followed by questions on the case study and a technical screening. I was informed 1 week later that I would not be progressing to the next stage (there were 2 more stages) and was given no feedback, even though the email mentioned I could contact for further feedback, I had not received a response to my reply asking for further feedback.