Learn / Data Engineer
Data Engineer Track

SQL, pipelines, dbt, Airflow, streaming. The plumbing every modern data org runs on.

The five stages

  1. 1

    Foundation

    In progress

    What data engineers build, OLAP vs OLTP, warehouse vs lake vs lakehouse, ETL vs ELT. Four concept pages, no code.

    8 items1.5 hrs
    0 of 8 completed

  2. Core Skills

    Submit boss to unlock

    SQL window functions, star schema, data partitioning, dbt fundamentals. Concept pages plus problems.

    8 items2.5 hrs
    Submit the Stage 1 boss to unlock

  3. Applied Practice

    Submit boss to unlock

    Advanced dbt, Airflow DAG design, ETL patterns, partitioning strategies. Medium problems with real pipeline scenarios.

    6 items3.5 hrs
    Submit the Stage 2 boss to unlock

  4. Interview Ready

    Submit boss to unlock

    Spark internals, CDC and Debezium, cloud warehouse cost optimisation. Hard problems with golden-answer comparison.

    5 items4.5 hrs
    Submit the Stage 3 boss to unlock

  5. Final Prep + Certificate

    Pro

    Company-tagged problems only. Required 15-minute simulator capstone. Completion generates a shareable certificate.

    3 items3.5 hrs
    Unlock with Pro