The first interview was coding (SQL and Python). There were no tricks, but you needed to be fast, so train beforehand. They provided plenty of material and online resources so you could be prepared.
The second interview was a full day in-house, working on design problems. It included plenty of whiteboard design exercises and coding.
I can't tell specific questions.
The following metrics were computed from 1 interview experience for the Meta Data Engineer role in Spain.
Meta's interview process for their Data Engineer roles in Spain is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Meta's Data Engineer interview process in Spain.