Graduate Software Engineering applicants have rated the interview process at Optiver with 4 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 49.2% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
First step was a series of gamified tests, the ones you've already read about. IT's not difficult, you just need to be mentally prepped a bit, to be up to speed. I wasn't and I got a bad score in the 6th 'game (out of seven) and it didn't let me continue.
Interview questions [1]
Question 1
First step is the online assignment, the gamified - anlytical tests