After I applied, I received an online assessment shortly. It was HackerRank-styled. I had only two choices of language: C++ and Java. A bit difficult than average, but doable with a lot of practice.
Questions on C++ data structures
The following metrics were computed from 7 interview experiences for the Optiver Graduate Software Engineer role in Amsterdam.
Optiver's interview process for their Graduate Software Engineer roles in Amsterdam is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Optiver's Graduate Software Engineer interview process in Amsterdam.