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Data Engineer Interview Questions

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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.

20,120 data engineer interview questions shared by candidates

2) create daily revenue report between given start_date and end_date output schema: (order_date, number_of_customers, number_of_orders, daily_total_order_amount, mtd_order_amount) mtd_order_amount - total order_amt from the beginning of the month till order_date
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Data Engineer - Business Intelligence

Interviewed at Amazon

3.5★
Apr 6, 2018

2) create daily revenue report between given start_date and end_date output schema: (order_date, number_of_customers, number_of_orders, daily_total_order_amount, mtd_order_amount) mtd_order_amount - total order_amt from the beginning of the month till order_date

Calculating percentage of sales percentage of non dat and regular products Calculating percentage of sales that matched the start date and end date of the promotion Fill the none values in a list with the previous non none value
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Data Engineer

Interviewed at Meta

3.6★
Oct 7, 2020

Calculating percentage of sales percentage of non dat and regular products Calculating percentage of sales that matched the start date and end date of the promotion Fill the none values in a list with the previous non none value

try to get a pattern out of string or json. ask you to translate numbers from 1 to 100 to names of numbers ( for example 34 translated to thirty-four). you need to come with a solution within 10 seconds, I am able to get it done within 2 minutes. That's not fast enough.
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Senior Data Engineer

Interviewed at Meta

3.6★
May 8, 2018

try to get a pattern out of string or json. ask you to translate numbers from 1 to 100 to names of numbers ( for example 34 translated to thirty-four). you need to come with a solution within 10 seconds, I am able to get it done within 2 minutes. That's not fast enough.

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Glassdoor has 20,120 interview questions and reports from Data engineer interviews. Prepare for your interview. Get hired. Love your job.