First OA followed by 30min behavioural. After that there are 3-4 rounds of technical questions and one final behavioural. Did not make it pass the first behavioural. Questions about your projects, CV, why Optiver, etc. Even though I thought I did well, they told me they were looking for somebody whose experience more closely aligned with the role (why interview then? Also, it's a graduate role).

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.