Commonwealth Bank of Australia Data Engineer Interview Questions
The questions to prepare for a Commonwealth Bank of Australia Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Find the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.
Commonwealth Bank of AustraliaExplain how to profile, clean, and standardize missing or dirty data before analysis.
Commonwealth Bank of AustraliaAssesses your understanding of join behavior and its performance implications.
Commonwealth Bank of AustraliaAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
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Inc.
Benjamin MooreCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta ITApproach for maintaining data quality and integrity across ETL pipelines.
Commonwealth Bank of AustraliaCompare ETL and ELT, and explain when ELT is the better pipeline pattern.
Commonwealth Bank of AustraliaDescribe a practical approach to data governance across shared data pipelines, including quality, ownership, lineage, and controlled data access.
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Tests hands-on coding skills for transforming and preparing data for analytics or downstream systems.
Commonwealth Bank of AustraliaEvaluates your practical coding skills across Python, SQL, and Spark for real data transformations.
Commonwealth Bank of Australia