These are standard coding challenges, mostly focusing on speed and slightly on correctness. If you practice your coding speed for a while, you will find them mostly easy. However, they do ask about multithreading, so you need to have those concepts very clear beforehand.
ACID properties, CAP theorem, Multithreading concepts, Sharding/Partitioning, Database indexes (pros and cons)
The following metrics were computed from 5 interview experiences for the Revolut Senior Software Engineer role in Barcelona, Spain.
Revolut's interview process for their Senior Software Engineer roles in Barcelona, Spain is very selective, failing most engineers who go through it.
Candidates reported having good feelings for Revolut's Senior Software Engineer interview process in Barcelona, Spain.