Optiver

It began with a standard online assessment technical screening. Then came a phone call with the recruiter. Next, there was one more technical interview. Last, there followed a 3-hour final round.

Behavior screen: about 20 minutes. Technical screen: 2 rounds. * 45-minute technical interview * 1-hour system design * 1-hour live coding test Final screen: 3 rounds. * Conversation with the Tech Trainer * Behavioral Interview * Tech Fundamental

2 rounds of tech, 1 round of behavioral. The tech questions are dynamic programming and system design related to trading systems. Overall, it is not very hard; it's at an average level.