Xero Data Engineer Interview Questions
The questions to prepare for a Xero Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.
XeroEvaluates system design for a high-volume financial reconciliation feature at Xero.
XeroUse a hash set to remove duplicate Meta event records from a stream while preserving first-seen order.
XeroExplain INNER, LEFT, RIGHT, FULL OUTER, CROSS, and SELF JOINs using finance reporting examples and null-handling implications.
XeroTests end-to-end data design for a Xero feature, including storage, access patterns, and performance.
XeroTests debugging, root-cause analysis, and durable data quality improvements for ML pipelines.
XeroTests query optimization skills for high-volume financial datasets and performance troubleshooting.
XeroTests system scaling thinking across performance, reliability, and architecture trade-offs.
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Find the second-highest distinct transaction amount using a subquery in PostgreSQL without LIMIT.
Capgemini FSSBU
Freecharge
NPCICalculate per-user engagement totals and active days over inclusive rolling 30-day windows using PostgreSQL window functions.
Xero
HudlUse LEFT JOINs and COUNT DISTINCT to count games with under 10 hours of playtime for each console.
Xero
Natera