Two Sigma Quantitative Researcher interview experience

I went through three technical interviews that each had a clear flavor: a data analysis discussion where I walked through an open-ended problem with pen-and-paper, starting with a linear model first and then getting into dataset characteristics, feature ideas, and methodology; an algorithms round with short, clean coding on a platform like HackerRank; and a final core statistics and domain expertise discussion grounded in things like linear regression, R-squared, and t-stat usage, all without coding.

Then I had several additional rounds with interns and hiring managers. Those were mostly