Susquehanna International Group·Quantitative Trader

Susquehanna International Group Quantitative Trader interview experience

No offer

Hard

Positive

Bala Cynwyd, PAPosted Nov 2025 · Candidate report, summarized by Dataford

My process felt like a fast sequence of technical rounds—about four or five of them—where each one lasted roughly 30–45 minutes.

Every round was built around probability and decision-making style questions, with a lot of emphasis on games: expected value, EV-style reasoning, and the way you’d learn or reason through a problem. The difficulty ramped up as the interview progressed. I started with questions that felt manageable and then they kept getting harder, eventually bringing in more open-ended prompts that forced me to explain my thinking rather than just compute.

The math itself leaned heavily on core probability plus the stuff that shows up in standard quant prep: expectation and variance, and a strong

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