Skip to contentSkip to footer

Data Engineer Interview Questions

Salaries
Interviews

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.

20,285 data engineer interview questions shared by candidates

Balance the string., i.e., How many additional literals needed to evenly balance the string. String is made of a-j and 0-9 where alphabets marks the opening and numbers as closing. For e.g., ab00a. This is unbalanced since it requires pair of b with 1, and additional 0 occurs before “a” ie., missing opening pair and later “a” without its closing number pair.. Result : 3 E.g., bj19 is balanced so result 0.
avatar

Data Engineer

Interviewed at Meta

3.4★
Oct 23, 2021

Balance the string., i.e., How many additional literals needed to evenly balance the string. String is made of a-j and 0-9 where alphabets marks the opening and numbers as closing. For e.g., ab00a. This is unbalanced since it requires pair of b with 1, and additional 0 occurs before “a” ie., missing opening pair and later “a” without its closing number pair.. Result : 3 E.g., bj19 is balanced so result 0.

SQL Data schema was provided. SQL to be written that used left joins, nulls in filter, count func., case stmt. Python create a histogram from a given list flatten a list: [1,2,[3,4. [5],[6,7,[8,[9]]]]] remove duplicates from a list count words in a sentence
avatar

Data Engineer

Interviewed at Meta

3.4★
Jun 17, 2021

SQL Data schema was provided. SQL to be written that used left joins, nulls in filter, count func., case stmt. Python create a histogram from a given list flatten a list: [1,2,[3,4. [5],[6,7,[8,[9]]]]] remove duplicates from a list count words in a sentence

Viewing 2611 - 2620 interview questions

Glassdoor has 20,285 interview questions and reports from Data engineer interviews. Prepare for your interview. Get hired. Love your job.