The Voleon Group Data Scientist interview with OLS regression and Linux tasks

My interview began with a first round that felt like two parts combined. I was either given a dataframe or asked to do a simple join, then I had to run an EDA pass and perform an OLS regression in Python. I focused on p-values and R-squared, and I had to explain the regression assumptions and residual-style checks as I discussed the results rather than just report the numbers. The second half foc…

Shared by a candidate · reported May 2026. Interview formats change; use it as a guide, not a script.