Susquehanna International Group Quantitative Analyst interview experience

I took an OA and then worked through a general coding assessment that required me to implement classic data-structure and algorithm tasks—things like hash map handling, binary search, queues, and heap operations. The difficulty increased across the set, and I remember needing to focus on the early problems quickly so I had enough time for the late ones.

The hardest moment was around a later question that hit runtime limits, forcing me to optimize beyond my first solution attempt. That shift was stressful, because it wasn’t just “figure it out,” it was “figure out faster than you originally