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20,279 data engineer interview questions shared by candidates

During the on-site interview I had a total of 4 rounds of interviews: 1st round is a coding interview for 90 minutes, during which time I was asked to design and implement a transaction supported in-memory database using any programming language of choice. 2nd round is a white-board design interview for 60 minutes, during which time I was asked to design a messaging application on the white-board with a few followup questions in the end 3rd round is an algorithms interview, I was asked a Leetcode medium question. The interviewers helped me when I was stuck 4th round is a general discussion with the hiring manager, who tested me on my knowledge of Data Engineering solutions/software out there in the market.
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Data Science Engineer

Interviewed at Caffeine

3.9★
Mar 5, 2020

During the on-site interview I had a total of 4 rounds of interviews: 1st round is a coding interview for 90 minutes, during which time I was asked to design and implement a transaction supported in-memory database using any programming language of choice. 2nd round is a white-board design interview for 60 minutes, during which time I was asked to design a messaging application on the white-board with a few followup questions in the end 3rd round is an algorithms interview, I was asked a Leetcode medium question. The interviewers helped me when I was stuck 4th round is a general discussion with the hiring manager, who tested me on my knowledge of Data Engineering solutions/software out there in the market.

There were SQL questions on RANK() Vs ROW_NUMBER() and Order Analytical Function usage such as SUM() OVER(PARTITION BY <> ORDER BY <> ROW UNBOUNDED PRECEDING). Question on how to club the set of Anagrams together from a list of words.
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Data Engineer

Interviewed at NerdWallet

3.5★
Aug 10, 2017

There were SQL questions on RANK() Vs ROW_NUMBER() and Order Analytical Function usage such as SUM() OVER(PARTITION BY <> ORDER BY <> ROW UNBOUNDED PRECEDING). Question on how to club the set of Anagrams together from a list of words.

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