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Senior Data Engineer Interview Questions
2,400 senior data engineer interview questions shared by candidates
few SQL and 2 python questions difficulty level 2
SQL question and python question
Understanding of distributed computing technologies
Data warehousing concepts, basic ETL optimization, questions without depth
Business or Domain knowledge expected from the project
Interview was scenerio based. He asked about my overall experience and then we had detail discussion on my past projects. Difference b/w star schema vs snowflake. And what was implemented and how was implemented in my project. Data profiling Data Mart ELT VS ETL and what are the advantages of ELT over ETL. TYPE 2 vs Type 3 SCD What is denormalization? Denormalization is stored in snowflake or star schema? Which is loaded first dimension or fact? In ETL Project is there any key column used? What was the purpose of that. 2 sql queries…rank vs dense rank and any other way of ranking in sql. 1 query for group vs analytical function
designing a simple data pipeline. They are mostly into modernization projects (moving from old technologies to cloud based ones)
General questions related to Microservices, Big data, leadership etc.
1. SQL performance tuning 2. Past experiences
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