Interview questions
Preparing for a data engineering interview at EPAM? This page contains 24 real interview questions sourced from verified EPAM interview experiences. Questions are sorted by frequency — the ones asked most often appear first.
EPAM data engineering interviews typically focus on SQL, Behavioral, and General/Other. There's a solid mix of fundamental and advanced questions, making it accessible for candidates at multiple experience levels.
Use the difficulty filters above to focus your preparation. For each question, attempt your own answer first, then compare with our expert solution. You can also practice these questions in our AI Mock Interview Coach for real-time feedback.
What are your salary expectations for this role?
Where do you see yourself in your career five years from now?
Briefly introduce yourself and walk us through your journey as a Data Engineer so far.
Can you explain the difference between OLTP and OLAP?
Explain the concept of ACID properties in the context of databases.
Explain the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
How do you handle NULL values in SQL? Mention functions like COALESCE and NULLIF.
What is a Common Table Expression (CTE), and when would you use it?
What is the difference between a primary key and a unique key?
What is the difference between WHERE and HAVING clauses in SQL?
How do you handle conflicts within a team? Provide an example.
How do you handle data security and compliance in a cloud environment?
Why do you want to join EPAM?
Describe a scenario where AWS Data Pipeline is preferred over Glue. Why?
In AWS Data Pipeline, how would you design a process to copy only recently modified files from one S3 bucket to another?
How do you secure API requests in this setup?
What are you seeking in your next role that your current position does not offer?
What are your expectations for this role?
What do you think differentiates EPAM from other consulting firms in the data engineering space?
What challenges arise with duplicate records, and how do you address them?
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