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415 software engineer data interview questions shared by candidates

This was a Scala position but they were open to allowing me to use Python or Java for the interview. Standard data eng questions - SQL, Spark, ETL, and some not so standard like API and microservices. I have not been actively interviewing, some of these questions were hard as I was very rusty.
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Senior Software Engineer, Senior Data Engineer

Interviewed at Demandbase

3.7★
Sep 26, 2023

This was a Scala position but they were open to allowing me to use Python or Java for the interview. Standard data eng questions - SQL, Spark, ETL, and some not so standard like API and microservices. I have not been actively interviewing, some of these questions were hard as I was very rusty.

Code test (via email): given a query and a document, highlight the query in the document and return a snippet of the document itself. Don't use existing large 3rd party libraries. You chose your algorithms and what snippet to return. It's all up to you.
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Software Engineer - Data Mining

Interviewed at Yelp

3.2★
Feb 26, 2013

Code test (via email): given a query and a document, highlight the query in the document and return a snippet of the document itself. Don't use existing large 3rd party libraries. You chose your algorithms and what snippet to return. It's all up to you.

HackerRank:Given a list of strings, group the anagrams. 3rd round: Skype interview for 45 minutes. Round 3:How would you compare two recommendation systems? Many follow up questions over the same. Given a sorted array, return the index of that element which satisfies the property a[i] = i. How would you solve the problem if there array has duplicates? Round 4: Given an n*m integer matrix where value in each cell indicates the cost involved in reaching that cell. At any cell, you can either go to right/down. Move from Top left of the matrix to the bottom right of the matrix with the least cost. How did i implement the Spam filtering project mentioned on my resume? Round 5: Given 4 co-ordinates, find if they form a square. How did i implement the Collaborative Filtering algorithm(mentioned on my resume) How would you compare two recommendation systems? Many follow up questions over the same.
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Software Engineer Internship, Data Mining, Search Team

Interviewed at Yelp

3.2★
Jul 19, 2015

HackerRank:Given a list of strings, group the anagrams. 3rd round: Skype interview for 45 minutes. Round 3:How would you compare two recommendation systems? Many follow up questions over the same. Given a sorted array, return the index of that element which satisfies the property a[i] = i. How would you solve the problem if there array has duplicates? Round 4: Given an n*m integer matrix where value in each cell indicates the cost involved in reaching that cell. At any cell, you can either go to right/down. Move from Top left of the matrix to the bottom right of the matrix with the least cost. How did i implement the Spam filtering project mentioned on my resume? Round 5: Given 4 co-ordinates, find if they form a square. How did i implement the Collaborative Filtering algorithm(mentioned on my resume) How would you compare two recommendation systems? Many follow up questions over the same.

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