Hopper interview questions

There were 4 interview steps . First interview was with the VP of DataScience. Second interview step was a take home problem. Third, was an interview to discuss the take home. 4th interview was an interview with the Chief Fata Scientist. The take home was no time limit so I could turn it in whenever I wanted. So I had no idea how much time they wanted me to spend on it. This I think is a bit unfair. I am a very busy person. I have a lot of weekend side projects and other teams I work with and papers to read. I dont want to have to guess how much effort you want me to put in. Please just give the candidate the task and ask then to complete within N hours. The most aggregious problem I had with the process was that after 4 steps and frankly a lot of time put into the entire process and even the Chief Fata Scientist asking me when I could start, etc. I never got a call back or even a notification that they had chosen another candidate. This is after I reached out just to get the status because honestly I was interested in the position. And it does stink to get rejected but what they did to me is completely insulting especially since I have a lot of other positions to consider if they are going to pass on me. Not calling or even sending a rejection email after 4 interview stages is completely unacceptable and tells me everything I need to know about the company. Yes, I am bitter, but rightfully so.

HR phone screening call which was then quickly followed by an invite to do an online Coding Challenge (2 hr hackerrank problem). Unfortunately my solution wasn't good enough to proceed. Felt like I could've used another 15 minutes. Oh well.