2D sorting and binary lifting questions. First was doable, second was competitive programming level, not standard LeetCode, which you shouldn't expect unless you are very lucky. Also, a game which they make you play.
Binary lifting on sorted array.
The following metrics were computed from 31 interview experiences for the Optiver Software Engineer role in Netherlands.
Optiver's interview process for their Software Engineer roles in Netherlands is extremely selective, failing the vast majority of engineers.
Candidates reported having good feelings for Optiver's Software Engineer interview process in Netherlands.