Got through most online assessments by skin of my teeth. Failed the Beat the Code (probability) test. Company recommends covering basic probability concepts but really need to memorise probability questions in chapters 4 and 5 of Green Quant Fiannce book and have muscle-memory reactions with regards to applying all of this theory to calculate answers in just 90 seconds. Feel completely gutted as I always had a natural ability with quick mental math and though Optiver would utilise this in the best way, however this just seems like a complete lie after those OAs and I will not be applying to the company again.
I applied through college or university. The process took 2 weeks. I interviewed at Optiver (Amsterdam) in Mar 2026
Interview
Did the online assement, sequences test, Zap N and lastly beat the odds probability type questions. The Zap N was some working memory, reflexing and planning tests and the beat the odds focused on giving good approximations to probabilities in around 1.5 minute for each question. Then did the technical which focused on market making games. Unfortunately, I was rejected after this round so don't much more than this.
The process took 2 weeks. I interviewed at Optiver (Amsterdam) in Jan 2025
Interview
first round: assessment with sequences, a variety of games testing memory, reaction speed, then a behavioral interview and finally a technical interview where we played a market-making game. The market making game included cards, you had to decide to buy/sell, what quantities etc. Assesment and behavioral where passable, technical was really difficult.
it almost took more than 2 hours to finish the online assessment, then a hr interview with typical behaviour questions. online assessment is not easy, including mental mathematics and logical reasoning questions. Hr interview is quite relaxed
Interview questions [1]
Question 1
it almost took more than 2 hours to finish the online assessment, then a hr interview with typical behaviour questions. online assessment is not easy, including mental mathematics and logical reasoning questions. Hr interview is quite relaxed