30-45 minutes phone interview, introduce and describe one past experience, then technical problems, mainly have probabilities and brainteasers, cards, dice problems from green book, brain teasers difficulty above green book, rejected
Asked a lot of market-making questions/games. Not the best experience as you have to verbally explain your reasoning into some pretty involved questions without the ability to write down any derivation on a whiteboard, for example.
I applied online. The process took 4 weeks. I interviewed at Citadel Securities in Oct 2022
Interview
I had one phone interview and then the super day, though my process might have been abridged since I had a competing offer. The first interview was standard probability and EV questions, and the super day consisted of 3 interviews with traders and a game competing against the other applicants.
Interview questions [1]
Question 1
Lots of questions about projects I did at my previous internship
I applied online. The process took 4 weeks. I interviewed at Citadel Securities (New York, NY) in Oct 2022
Interview
The first round was a phone screen with a trader followed by a virtual onsite. Onsite was a mix of auction games, market making on theoretical quantities with imperfect information, fermi questions, and some EV estimation questions.
Interview questions [1]
Question 1
Expected number of dice rolls to see each number twice