Data Engineering — Teaching & Interview Guides
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Data Engineering Interview Guide: Present a GCS to BigQuery Load Runbook
Explain a batch ingestion project using contracts, checks and a recovery walkthrough.
Read guide →Why Did My LEFT JOIN Lose Unmatched Records?
Resolve a pipeline reconciliation doubt by placing filters correctly and checking unmatched rows.
Read guide →Data Engineering Interview Q&A: Idempotent Loads, Retries and Late Updates
Practise batch replay and late-update questions with a BigQuery MERGE pattern and clear data contracts.
Read guide →GCS to BigQuery Explained: Designing a Reliable Batch Data Pipeline
Plan a GCS-to-BigQuery batch pipeline with explicit schemas, staging validation, duplicate handling and a clear retry strategy.
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