Apexon Data Engineer Interview Questions
The questions to prepare for a Apexon Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Rank the three most purchased items per region using filtered aggregation and ROW_NUMBER on a distributed transaction table.
ApexonTests dimensional modeling skills and ability to design analytics-ready schemas for high-volume mobility data.
ApexonTests diagnostic approach to SQL performance regressions and knowledge of query plans and indexing.
ApexonAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin MooreCompute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.
Gain Digital
TCS
Zest AICompare ETL and ELT, and explain when ELT is the better pipeline pattern.
ApexonTests architecture tradeoff reasoning across cost, performance, governance, and query patterns.
ApexonTests end-to-end pipeline architecture, real-time and batch integration, and delivery of analytics to users.
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Tests Python data parsing, robustness to messy logs, and practical handling of schema variability.
ApexonTests maintainability improvements, refactoring judgment, and use of software design patterns in data code.
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