I applied online. The process took 1 week.
As soon as my CV reached them, I had 7 days to complete a HackerRank and 2 more tests. It took them from Monday morning (when I submitted the coding test) to Wednesday evening to reply.
Was a Hacker Rank average but difficult, then CS questions in multiple choice, and finally some kind of minigames.
The following metrics were computed from 16 interview experiences for the Optiver Graduate Software Engineer role.
Optiver's interview process for their Graduate Software Engineer roles is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Optiver's Graduate Software Engineer interview process.