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Data Engineer Interview Questions
20,280 data engineer interview questions shared by candidates
SQL: Given a table where each row is a transaction, and columns are customer ID, transation value and date. How would I get the top 5 largest average transaction value in a month. Python: Given a numpy array, a list and a pandas series with millions of numbers in them, if we were to sum the elements which one would be faster? Database: What is the underlying architecture behind say when you run a SQL query? How do you process raw data files into a database
Q: How do you ensure time series data does not have discrepancy?
Finding a list of ids and getting the count of ids from another table.
Tell us about yourself and how you got here
After seeing interview process never ever going to join this company.
Q: If you drop an egg from a building with n floors, how would you determine the first floor at which the egg cracks? How would you do this without knowing the number of floors?
If you get an unsorted string of many a's and b's, how would you sort it in an efficient way?
Would you be open to exploring another similar role that aligns more closely with your skills and interests?
Explain some of the Cloud Services you have used and in what context?
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