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Learn data engineering from zero, one key question at a time. KeyQuery makes data engineering easy for beginners, with clear animations and plain words.

Each video answers one question, like "What is a data pipeline?" or "How does Kafka work?" Every lesson happens inside one story: a live sports streaming startup that grows from a garage to millions of fans. You'll watch its data break on match night, then see exactly how data engineers fix it.

What you'll learn:
- Data engineering basics: data pipelines, ETL vs ELT, data modeling
- SQL and Python for data engineers
- Data warehouses, data lakes and lakehouses
- Spark, Kafka, Airflow, dbt and streaming data
- Data quality, cost control and data for AI
- Interview questions for your first data engineering job

Plus Shorts on trending data engineering topics and the AI updates that matter to data engineers.

New here? Start with Episode 1: What Is Data Engineering? Then subscribe and learn with us.