Very slow process and replies (almost 4 to 6 months of waiting). No feedback received as well. Interview rounds were standard questions in the industry with behavioural and technical as SQL.
Recruiter screen, easy HackerRank online assessment, then a case study (Present a kaggle like data analysis), write an executive brief about findings. The process went swiftly, the recruiter was nice and responsive
I applied online. The process took 2 weeks. I interviewed at Visa Inc.
Interview
The first round was with the director of data science, followed by a one hour technical data science project walkthrough for a panel of data scientists on the team and followup questions about ML fundamentals. I received the offer within two weeks of being contacted for first round.
Interview questions [1]
Question 1
What is the difference between bias and variance? How do you handle imbalanced data? Describe how an XGBoost model makes predictions.