Two Sigma Quantitative Analyst interview experience

I sat for two rounds focused on probability theory that weren’t just plug-and-chug—they included puzzles, counting problems, and Markov chains. The theme that kept coming back was random walks tied to real-life framing.

Then the schedule moved into two rounds of coding. Overall, the probability portion felt like the main filter, and once I got through that, the coding rounds were a different kind of challenge—more about implementing and reasoning clearly under time constraints. I ended up not getting an offer, but the process felt coherent: probability concepts first, then “show it in code.”