Affine Data Engineer Interview Questions
The questions to prepare for a Affine Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Explain the differences between WHERE and HAVING clauses in SQL and when to use each.
AffineTests SQL join semantics and your ability to choose the right join for data correctness.
AffineTests query optimization skills for performance issues in large-scale SQL workloads.
AffineCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta ITFind the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
eClinicalWorks
Informatica
Spectraforce TechnologiesAnalyze weekly service delivery performance by team using joins, a CTE, date aggregation, and KPI calculations.
Deloitte
ReputationTests your ability to choose Spark join strategies to reduce shuffle and improve runtime.
AffineTests deep Spark execution understanding for performance and stability at scale.
AffineTests your approach to building reliable incremental ingestion pipelines in Azure.
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Tests Python fundamentals for efficient data manipulation with slicing.
AffineTests your understanding of Python data structures and tradeoffs relevant to data engineering.
Affine