It sounds like you had a thorough and focused interview process, with three rounds specifically testing your coding and data structures knowledge. This level of assessment is great for evaluating technical skills comprehensively. How did you find the experience overall?
3 rounds of interview and easy to medium level. First round is online test based on coding. Second is interview with senior data scientists and third round is interview with director of department. And then HR round.
I applied online. The process took 6 days. I interviewed at dunnhumby (Gurgaon, Haryana)
Interview
2 back to back interview on consecutive days were conducted.
In both interviews relevant questions were asked related to ML and a case study based on customer targeting was provided to get an idea of overall logical thinking
Interview questions [1]
Question 1
ROC/AUC curve, regression and decision tree questions
