I applied online. The process took 2 weeks. I interviewed at UBS in May 2022
Interview
first round was HR, then the group manager, peer interview, and the last round was department chair. They were all very friendly and nice. No tricky problems. u can contact hr anytime if you got any question
Take home exam on data analysis and statistical inference, and then two rounds technical interviews, mostly probability and classical statistics and machine learning. Some simple algorithm questions done verbally too.
First round was panel Interview with 2 people, Ask questions on Statistics and resume. One was the VP of the team and other was regional manager. The Interview was not that difficult. But then I was ghosted. There was no reply from either HR or anyone else, I tried contacting them several times