GIGATEC Data Engineer Interview Questions
The questions to prepare for a GIGATEC Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Compare ETL and ELT, and explain when ELT is the better pipeline pattern.
Compare batch and stream processing across latency, complexity, cost, and data quality in a modern analytics pipeline.
Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.
Tests your understanding of storage engines and how they affect query patterns and performance.
Tests your understanding of modeling tradeoffs for performance, maintainability, and consistency.
Tests your ability to design for scale, distribution, and operational complexity.
Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.
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Benjamin MooreCompute daily agent call KPIs and SLA using joins, aggregations, and window ranking in a contact center model.
ADPUse joins, CTEs, and CASE logic to flag and fill missing financial fields for Qlik planning records.
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Tests your performance-aware coding practices for big data processing.
Tests your practical coding experience for building and maintaining data pipelines.