Quant Trading Intern applicants have rated the interview process at Optiver with 3.7 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 52% positive. To compare, the company-average is 49.2% positive. This is according to Glassdoor user ratings.
Candidates applying for Quant Trading Intern roles take an average of 22 days to get hired, when considering 21 user submitted interviews for this role. To compare, the hiring process at Optiver overall takes an average of 20 days.
Common stages of the interview process at Optiver as a Quant Trading Intern according to 21 Glassdoor interviews include:
One on one interview: 28%
IQ intelligence test: 21%
Phone interview: 21%
Skills test: 17%
Personality test: 10%
Group panel interview: 3%
Here are the most commonly searched roles for interview reports -
1. There's a multiple round online assessment focused on mental math, problem-solving, and memory 2. Then there's a call with a trader going over probability and brainteaser type questions, the interviews expect quick answers and the answer has to be close to the right answer, even if not exact
Interview questions [1]
Question 1
1. Online assessment with Mental Math, Puzzles, and Memory testing
It was a very rough process overall, they asked some difficult questions about probability, making bets/ trades on certain scenarios, requires being able to estimate large/small numbers, giving confidence intervals
I applied online. I interviewed at Optiver (Amsterdam) in Nov 2025
Interview
Online Assesment, then 30 minute zoom call with HR person, then 2 60 minute technicals and finally 60 minute final technical and 60 minute final HR. Online Assesment was mix of reflex games (can't really practice these), pattern recognition in sequences and probability estimations. Pattern recognition ones are 90% of the time one of few tricks. Probability ones are usually impossible to estimate accurately (no clean solution), but the gap between answers is usually big enough for it to not matter. All 3 technical interviews were me playing some kind of market simulator with a trader, and him asking questions about my thought process. These games did not require knowing more advanced concepts than EV.
I applied through college or university. The process took 2 weeks. I interviewed at Optiver
Interview
Online application -> behavioural interview -> cognitive interview 1 -> cognitive interview 2 -> assessment centre - which is a mix of technical and behavioural questions. The entire process is online.