Data Science Intern applicants have rated the interview process at Two Sigma with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 43.1% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
3 hour coding challenge with 2 questions; can be completed in choice of language (R, Python, C/C++ etc). Tested on coding original function and data analysis, as well as writing computationally efficient code