They send you an email very soon after you applied and ask you to take an assessment. This assessment takes 2 or 3 hours and should be medium level. The in-person interview is hard.
Assessment first, then interview.
The following metrics were computed from 9 interview experiences for the IBM Data Engineer role in United States.
IBM's interview process for their Data Engineer roles in the United States is very selective, failing most engineers who go through it.
Candidates reported having very good feelings for IBM's Data Engineer interview process in United States.