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Sr Data Engineer Interview Questions
2,558 sr data engineer interview questions shared by candidates
- Extract data from an API - Please explore the data, and present insights - Propose a production setup for the ETL flow
Optiomization techniques for pyspark jobs
- did you work with Athena? - what is the difference between OLAT and OLTP? - what happens when join is executed in a data warehouse? - What is sqs and sns?
Pure python questions on data modelling, instead of using pandas or pyspark
What was interesting about the job posting?
- Diferença entre Datalake e Datawarehouse e como implementá-los
SQL questions were very reasonable, with window functions being the hardest topic
No questions where asked since the interviewer never responded.
- Discussion about main data engineering trends - Writing and review SQL code - Writing and review Python code for JSON
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