After applying online, I was sent a 3-hour online programming test (HackerRank). They only offered it in selected languages, which were, I think, C, C++, or Java.
This had three questions. Two of which were quite easy (see LeetCode Easy), and the final one was more difficult (see LeetCode Medium).
Next was a phone interview to discuss why you want to work at Optiver and to serve as an opportunity to get to know you.
Next was a 90-minute psychometric test (numerical and analytical).
After that was an invitation for an on-site interview. The on-site interview was 2/3 of a day and consisted of three interviews:
Why do you want to work at Optiver?
The following metrics were computed from 1 interview experience for the Optiver Software Engineering role in Sydney, Australia.
Optiver's interview process for their Software Engineering roles in Sydney, Australia is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for Optiver's Software Engineering interview process in Sydney, Australia.