Team Leader applicants have rated the interview process at Optiver with 5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 55.4% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Phone interview: Very open questions to get a feel for the person suitable for the position. The questions were not following any set of rules or guidelines rather flow of the conversation.