Upcoming interview for Senior Applied Research Engineer at LinkedIn

I have an upcoming interview for Senior Applied Research Engineer role at LinkedIn. I was told for the first screening round I will be asked about my projects and one DSA question. It will be helpful if anyone can tell me what to expect in DSA rounds(there will be a dedicated one if I clear screening). How deep will they go into ML, for eg will they ask about algorithm implementation or mathematics behind it? Thanking everyone in Advance #data #dataanalytics #datascience #amazon #linkedin #interview