Optiver Graduate Quantitative Researcher interview questions

Passed Multiple Rounds. First was a long OA with coding and maths questions. Then HR Then technical interview with a quant researcher. Then a data challenge then i had to present the results of my data challenge. Failed at this round

I passed the screening stage and was given a test with four parts: coding, probability and statistics, completing sequences, and finally some games. The toughest part was the probability and statistics section, where some questions took a long time to solve. It’s better not to lose hope, just skip those and focus on the easier ones. Unfortunately, I didn’t make it to the next stage.