The whole process took 2 weeks, with 1 hiring manger and 1 ML Engineer phone screen. The following up should be a virtual on-site, but I didn't make it there. They didn't give me any feed back. I answered the data science questions really well. But when I tried to explain my research to the interview, he seemed not very interested and always interrupt me when I was speaking. The interviewer doesn't seem to understand my research and then I got rejected.