I applied through college or university. I interviewed at Optiver in Mar 2020
Interview
I did not make it past the programming test but they made it easy to apply and didn't ask for anything unreasonable. When I requested some feedback they promptly sent back the programming test result.
Interview questions [1]
Question 1
Language features such as inheritance, object oriented design. Some algorithm and data structure questions.
The interviews consisted of an OA, then behavioural, then technical and thena final round consisting of another technical, system design and behavioural. These last interviews all an hour each. I only got up to the first technical.
OA; quite long, 3 tests
Behavioral interview: just a short talk with HR, motivation,…
Technical Interview 1: fundamental CS, nothing more
Technical Interview 2: system design, very vague but just go with the flow
Technical Interview 3: live coding, still leetcode but optiver style is a very descriptive problem, but the main thing could be boiled down into only few lines
