Hudson River Trading Software Engineer interview experience

I had about a week to complete it, and I could pick the language (C++, C, or Java). The test itself was tight: three coding questions inside a roughly 2+ hour window. The first prompt felt almost too easy and made me overconfident, but the second problem shut that down quickly. By the time I got to the third one, it took longer just to read and understand what was being asked than it did to solve the first question.

A few weeks later, I had a phone interview. The questions leaned heavily into probability, and I remember it feeling less like a generic chat and more like they were checking