Interview questions · hard
Briefly introduce yourself and walk us through your journey as a Data Engineer so far.
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?
How do you handle conflicts within a team? Provide an example.
In AWS Data Pipeline, how would you design a process to copy only recently modified files from one S3 bucket to another?
Describe your preferred work environment and collaboration style.
Walk me through your resume. What are the key highlights that align with this role?
Describe a recent project where you used AWS services extensively. What was your role, and what challenges did you face?
Discuss a project where you significantly impacted performance or cost optimization.
Describe how you would optimize slow-running Spark jobs in a distributed environment.
How do you implement incremental updates in a data lake using AWS services and Spark?
Design a data pipeline to ingest and process data from multiple sources (e.g., S3, Kinesis) to Redshift using Spark.
How would you fetch data from an external API, and what AWS services would you use to build a scalable data pipeline?
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