Interactive Brokers Quantitative Analyst interview experience

After an initial screening phase, I ran into technical material that felt centered on data structures and algorithmic thinking—things like graph or linked list style challenges, plus coding that required space-optimized reasoning for the specific problem they handed me. The bar felt demanding enough that it didn’t resemble a casual practice interview; it was more like I was being evaluated on depth.

In later stages, I also encountered questions that were explicitly probability- and finance-adjacent, including discussion of binomial tree concepts and how probabilities map into algorithmic