Optiver

First, there was an HR phone screen about background and motivation. Then, a 1-hour online coding round. Finally, the onsite interview, which included two rounds focusing on system design and work experience.

It was the first round. It was a cognitive type test. It had arithmetic questions, as well as personality-based questions, and probability questions. It also had a ZapN test, which included many games.

After submitting the application, you will receive an overall assessment of your programming language skills. The assessment has two questions, and you will have 72 hours to solve them. The hiring recruiter is patient about answering your questions