2020 Companies Data Engineer Interview Questions
The questions to prepare for a 2020 Companies Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Explain your preferred extraction and transformation stack, and the reasoning behind those tool choices.
2020 CompaniesDiscuss the data integration tools you have used and how they fit into ETL, orchestration, and data quality workflows.
2020 CompaniesDesign a pipeline for a real-time operational dashboard, covering streaming ingestion, modeling, data quality, and dashboard serving.
2020 CompaniesPractical approach for maintaining data quality across ML ETL pipelines, orchestration, and repeatable data processing.
2020 CompaniesApproach for maintaining data quality and integrity across ETL pipelines.
2020 CompaniesTests understanding of relational vs non-relational data models and when to use each.
2020 CompaniesTests your ability to diagnose and improve query performance using relational database techniques.
2020 CompaniesTests your knowledge of query tuning practices such as indexing, plans, and query rewrites.
2020 CompaniesAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
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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