First, there was a HackerRank test. After that, an HR Skype call followed, and then a technical Skype call.
If the technical Skype call had been positive, I would have received an invitation to a full day of on-site interviews. This day would have consisted of two technical interviews and two HR interviews. That's a lot of interviewing.
The interviewers seemed quite bored. I understand they must have a lot of throughput, but I don't think that's an excuse for appearing uninterested.
It was generic stuff, like, "Why do you want to work at Optiver?" and so on.
The following metrics were computed from 30 interview experiences for the Optiver Software Engineer role in Amsterdam, Netherlands.
Optiver's interview process for their Software Engineer roles in Amsterdam, Netherlands is extremely selective, failing the vast majority of engineers.
Candidates reported having good feelings for Optiver's Software Engineer interview process in Amsterdam, Netherlands.