I applied online. The process took 2 weeks. I interviewed at Optiver (Taipei) in Apr 2021
Interview
- Resume phase
- OA on SHL assessment
- OA on probability problems and data analysis
- Behavioral Interview
- Technical Interviews *2 : Market making, Poker market making games, Fermi problems, Quick estimations, mental math
Interview questions [1]
Question 1
Fermi problems, quick math estimations (probability of getting 50 heads and 50 tails in 100 coin flips, estimate in 10 seconds)
Multiple Rounds, first was behavioral and second was technical. They first did a pretty lengthy behavioral and seemed pretty good, but then the technical was mainly all Fermi estimations and market making games.
Online assessment followed by multiple steps of technical and behavioral interviews. Pretty standard process in general, positive experience. Seemed to care a lot about cultural fit more than other firms
I applied online. I interviewed at Optiver (Amsterdam) in Dec 2025
Interview
Passed the online games and behavioral interview. Rejected at the Cognitive Interview phase. Failed because of not taking risk directly and second guessing if I'm doing things correctly. Overall challenging and fun experience.
Interview questions [1]
Question 1
Play the betting games that we're providing you to increase PnL without any additional information.
