Data Engineer Interview Questions

Data Engineer Interview Questions

Data engineers are IT professionals who are needed in almost every industry. Data engineers monitor data trends to determine best next steps for companies. A critical part of a data engineer job is to process raw data into usable data by creating data pipelines and building data systems.

Top Data Engineer Interview Questions & How To Answer

Question 1

Question #1: Can you describe in detail your level of expertise with programming languages?

How to answer
How to answer: Before the interview, review your resume and/or portfolio and make a list of the programs you are most proficient with. If you find that you are lacking the expertise in a program that the company predominately uses, describe yourself as a highly motivated self-starter who will work tirelessly to learn the program(s).
Question 2

Question #2: Explain data engineering in your own words.

How to answer
How to answer: Highlight your role in relation to the larger organization and other roles like data scientists to clearly define your contribution to the overall system of business. Clarify the difference between a database-centric engineer and a pipeline-centric engineer.
Question 3

Question #3: Can you describe your experience working with Apache Hadoop and cloud data management environments?

How to answer
How to answer: Research the company's software, data cloud products, and use of Apache Hadoop to be prepared for this inquiry. Data Engineers must be fluent in programming languages and data management systems used throughout the industry such as Apache Hadoop.

20,222 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?

you are given a dictionary where the key is location of book store and value is the list of reviews as string. the list can have duplicate values. return the most frequent review across all locations after removing the duplicate review for each location.
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Data Engineer

Interviewed at Meta

3.5
Oct 31, 2024

you are given a dictionary where the key is location of book store and value is the list of reviews as string. the list can have duplicate values. return the most frequent review across all locations after removing the duplicate review for each location.

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