Sr Data Scientist Interview Questions

3,387 sr data scientist interview questions shared by candidates

Q: Tell us about yourself and your experience Q: Walk us through your past projects and experience. And later asked technical and non-technical questions based on the resume. Q: ML algos were asked Q: SQL questions to solve Q: Scenario bases DS questions. Which model would I choose, why and walk them through Q: Product-based scenarios were given and my inputs were asked on how I could make it better or how would I have navigated from scratch. Q: Ways to handle an unbalanced dataset
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Senior Data Scientist

Interviewed at Citizens

3.8
Jul 3, 2024

Q: Tell us about yourself and your experience Q: Walk us through your past projects and experience. And later asked technical and non-technical questions based on the resume. Q: ML algos were asked Q: SQL questions to solve Q: Scenario bases DS questions. Which model would I choose, why and walk them through Q: Product-based scenarios were given and my inputs were asked on how I could make it better or how would I have navigated from scratch. Q: Ways to handle an unbalanced dataset

round 1 - why do you want to change the job? round 2 - SQL queries (CTEs + window functions medium level) + basic data science questions + project round 3 - credit risk modelling take home assignment + technical discussion round 4 - credit risk case study discussion round 5 - absolutely useless round (and they rejected me for no reason here after doing well throughout the process) Whole process took 2-3 months which is unnecessarily long
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Senior Data Scientist

Interviewed at Oliver Wyman

4
Aug 25, 2025

round 1 - why do you want to change the job? round 2 - SQL queries (CTEs + window functions medium level) + basic data science questions + project round 3 - credit risk modelling take home assignment + technical discussion round 4 - credit risk case study discussion round 5 - absolutely useless round (and they rejected me for no reason here after doing well throughout the process) Whole process took 2-3 months which is unnecessarily long

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