Sr Data Scientist Interview Questions

3,368 sr data scientist interview questions shared by candidates

SQL: quite basic joins, groupbys, some window functions Python: create a function to estimate cashback of each transaction given different assumptions Experimentation: there were maybe a dozen questions here, do your homework and learn about experimentation!
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Senior/Principal Data Scientist

Interviewed at Cash App

3.7
Jan 23, 2024

SQL: quite basic joins, groupbys, some window functions Python: create a function to estimate cashback of each transaction given different assumptions Experimentation: there were maybe a dozen questions here, do your homework and learn about experimentation!

1. Thorough run-through of the resume, explain how you did this, that, etc. 2. SQL code for extracting 2nd longest flight between destinations X and Y, given the database of American flights. 3. Questions on SVM, over/under-fitting, regularization, choosing no. of hidden layers in NN, how to choose hyperparameters, etc.
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Senior Data Scientist

Interviewed at Veritas Technologies

4.1
Jan 31, 2021

1. Thorough run-through of the resume, explain how you did this, that, etc. 2. SQL code for extracting 2nd longest flight between destinations X and Y, given the database of American flights. 3. Questions on SVM, over/under-fitting, regularization, choosing no. of hidden layers in NN, how to choose hyperparameters, etc.

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