Databricks Senior Software Engineer interview questions

First, I get reached out by the recruiter and the initial phone screen was 20-30 minutes long. I made it pretty clear why I was looking for a job. Then I had a technical phone screen with the interview. I did complete the question within 30 minuted. But still there was time left, so the interview asked me to write the iterative version of the solution although I did explain that there will be no improvement in time/space complexity but still on insisting I wrote the iterative solution. Then I hear back from the interview that I did clear the interview and a couple of teams are interested in my profile and one of the managers would like to talk to me before the onsite interview. So I thought it is just an informal call with the manager and so did the recruiter mentioned it. Turns out it is was a managerial round where I was asked what I have been doing for the past 1 year why I am looking for a job. Well, I did explain and answer all the questions and then he happens to explain to me different teams in the data bricks. To my shock the next day I get a rejection mail. When I contact the recruiter asking how come I am seeing a rejection now when I was supposed to be done onsite and the call with the manager was informal. She explains saying it was informal but the manager liked to deep dive whether I am suited for an onsite interview. This is the most horrible experience I had in an interview where I was told we will soon be scheduling onsite and then being told I am rejected based on an informal call? Although from the beginning itself during the first 30 minutes call I have clearly explained why I am looking for a job. I would not interview with data bricks again in my life