Make sure you can talk about your past projects in satisfactory ways.
Senior Data Scientist Interview Questions
3,509 senior data scientist interview questions shared by candidates
Given data, how would you write a query to get an unique number of users?
Answer the boy-girl problem.
Why do you want to join Optum?
Showed Python code and asked to explain what it did, or correct errors
Give examples of time series prediction algorithms,
How to grade a perfection of drawn circle?
If you could have one superpower, what would it be?
Tell me about a side project you worked on - what motivated the choice, what skills you learned, the overall outcome.
Coding : Pandas grouping function, List operations SQl : Find sales progression year on year using SQl and pandas Kmeans clustering working , imbalanced data set, loss function, Random forest pruning, Hyperparameter tuning, OOPs concept, python List and set , DBSCAN hyperparameter.
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