Data Engineer Interview Questions

21,096 data engineer interview questions shared by candidates

When you worked on a project and had difficulty with a stakeholder How you worked through a complex issue and the steps you took When you had to finish a task while working with an outside group When you helped a coworker learn new technology Describe a time when you had to come up with an innovative/creative idea Describe a time when you thought you did something well, but it didn't go well and exposed an even bigger issue. Describe a time when you had to facilitate change Describe a time when your internal/external customers were satisfied Describe something or a time in which you were really satisfied with your job (did not have to follow STAR format) a time when you had a disagreement with a team member. how did you handle it? a time when you came up with an innovative solution a time you took action to change something because you thought a process was being done poorly With tech changing so rapidly, how do you keep up with change and stay up to date with things (I don't think this would apply to you) What is your proudest accomplishment STAR questions are limiting. Is there anything else you felt you weren’t able to get across that you wanted us to know?
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Intermediate Data Engineer

Interviewed at Progressive Insurance

3.9
Oct 10, 2025

When you worked on a project and had difficulty with a stakeholder How you worked through a complex issue and the steps you took When you had to finish a task while working with an outside group When you helped a coworker learn new technology Describe a time when you had to come up with an innovative/creative idea Describe a time when you thought you did something well, but it didn't go well and exposed an even bigger issue. Describe a time when you had to facilitate change Describe a time when your internal/external customers were satisfied Describe something or a time in which you were really satisfied with your job (did not have to follow STAR format) a time when you had a disagreement with a team member. how did you handle it? a time when you came up with an innovative solution a time you took action to change something because you thought a process was being done poorly With tech changing so rapidly, how do you keep up with change and stay up to date with things (I don't think this would apply to you) What is your proudest accomplishment STAR questions are limiting. Is there anything else you felt you weren’t able to get across that you wanted us to know?

Second Round: 1. Find all integers x, y (x >= 0, y >= 0) solutions of a diophantine equation of the form x ^ 2 - 4 * y ^ 2 = A 2. Write a function named first_non_repeating_letter that takes a string input, and returns the first character that is not repeated anywhere in the string. 3. Simple JOIN with COUNT Third Round 1. The interviewer gave a table with some sample data. The task was to give the best Data Structure solution in order to find a specific data efficiently.
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Data Engineer

Interviewed at Devoteam

3.8
Jul 2, 2022

Second Round: 1. Find all integers x, y (x >= 0, y >= 0) solutions of a diophantine equation of the form x ^ 2 - 4 * y ^ 2 = A 2. Write a function named first_non_repeating_letter that takes a string input, and returns the first character that is not repeated anywhere in the string. 3. Simple JOIN with COUNT Third Round 1. The interviewer gave a table with some sample data. The task was to give the best Data Structure solution in order to find a specific data efficiently.

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