Series

Zero to Expert

Data engineering fundamentals before the tool.

4 episodes

01 Data Flows Ep01: the concept that comes before any tool Knight Capital lost $440 million in 45 minutes because one server ran old code. Before any tool, there is a concept that separates a robust … 30 May 2026 02 Zero to Expert · Ep 02: DAG dependencies, the law every orchestrator obeys Before picking Airflow, Dagster, Prefect or anything else, understand the graph. 13 Jun 2026 03 Zero to Expert Ep 03: Idempotency, why running the pipeline twice cannot change the result Ep 01 covered data flow, Ep 02 covered DAG dependencies. Now the property that separates a reliable pipeline from a time bomb: idempotency. 27 Jun 2026 04 Zero to Expert Ep 04: Wrong partitioning costs more than not partitioning Almost everyone learns "partition to make it fast". The wrong granularity makes your pipeline slower, pricier and more fragile than no … 04 Jul 2026