difference between datalake, datawarehouse, and what is a lakehouse ?
Senior Data Engineer Interview Questions
2,442 senior data engineer interview questions shared by candidates
Ask your knowledge of how Spark works. Also ask if you are familiar with cloud technology. Some other stuff like dataware house and Airflow. The question is confusing sometime though, as the interviewer sometimes cannot tell different concepts apart.
d you have any other offer in hand?
Take-Home was answering questions using spark. Nothing too complex. An important element is writing test cases to show a complete example. The panel was more around getting a sense of your technical experience and how you would handle specific cases. There was a live coding session, but nothing was out of the ordinary.
We discussed my data engineering experience and interest in the public sector.
Situational based questions around Data processing in batch and Streaming
How to track purchases from external websites?
What's the biggest mistake you made in your previous work and what did you learn from it. How do you optimize long running queries? How would you integrate external API data to a data engineering pipeline? Explain the medallion architecture and how do you use it in your work.
Different types of dimensions in Datawarehouse
Given a log of tenants, how to find a the first ever record and latest record in the tenant. And giving another description table basically how to do a join.
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