The interviewer did not seem very interested in the process. They were working on something on the side, and gave no input on whatever I was doing, basically leaving me in the dark. When I asked about their job at the end, they gave an extremely short description as if waiting to finish the interview as quickly as possible.

Process involves 3 x 1 hour virtual interviews that will cover basic probability/stats/coding tasks, passing this there is an in person day with a more involved challenge and presentation to team. Final HR style interview will only happen all this and one should expect 2-3 weeks between interviews.