I applied online. The process took 4 weeks. I interviewed at Optiver (London, England) in Nov 2022
Interview
Online test (mental maths, probability questions, reaction times test etc), then behavioral interview with HR, then technical interview (which I didn't pass). Technical interview involved a betting game, estimation type questions and some brainteasers.
Interview questions [1]
Question 1
Making markets on number of people in the air at this moment, over the UK.
a very typical intern interview, just ask u some normal question about ur background and why trading why the company
only general behaviour question, nothing about math or tech for the first round interview
There were many different mini games that did not immediately appear relevant to trading. The games during the interview appeared to measure confidence, technical skill, and how risk averse the candidate was.
Interview questions [1]
Question 1
Rolling a fair die 1-6, probability of getting each number exactly once.
Mental math assessment, rapid fire market making virtual interview mostly on Fermi estimations, virtual aptitude assessment with HR followed by final day of interviews on betting strategies and making markets.
Interview questions [1]
Question 1
You and N other players are each dealt a number and bet on the average taking turns and going around many times. What is your strategy? How does it change if everyone knows the distributions the numbers were sampled from?
