ETL Developer → Data Engineer

A realistic transition from ETL Developer to Data Engineer: transferable skills, the gaps to close, a step-by-step learning plan and alternative routes. Estimated skill overlap 62%. Difficulty: Easy.

Difficulty: Easy7 stepsDuration: 4 to 8 monthsOverlap: 62%

Transition from ETL Developer to Data Engineer.

Transferable skills

  • SQL
  • Orchestration (Airflow)
  • Data modelling
  • Cloud data platforms

Skills to learn

  • Spark / distributed processing
  • Streaming (Kafka)
  • CI/CD & testing

Step-by-step learning plan

  1. 1. Build on your ETL Developer experience

    2–4 weeks

    Leverage

    • SQL
    • Orchestration (Airflow)
    • Data modelling
    • Cloud data platforms

    Map transferable skills — SQL, Orchestration (Airflow), Data modelling — against what a Data Engineer needs.

  2. 2. Close the partial gaps toward Data Engineer

    3–6 weeks

    Improve

    • Python

    Raise Python to the level a Data Engineer relies on.

  3. 3. Learn the core of the Data Engineer role

    6–10 weeks

    Learn

    • Spark / distributed processing
    • Streaming (Kafka)

    Technologies

    TerraformKubernetesAWS

    Cover the biggest gaps first: Spark / distributed processing, Streaming (Kafka).

  4. 4. Master advanced Data Engineer skills

    6–10 weeks

    Learn

    • CI/CD & testing

    Technologies

    GCPParquetLinux

    Handle the advanced topics: CI/CD & testing.

  5. 5. Get productive with the Data Engineer toolchain

    4–8 weeks

    Technologies

    TerraformKubernetesAWSGCPParquetLinux

    Be hands-on with Terraform, Kubernetes, AWS and the rest of the target stack.

  6. 6. Practise Data Engineer work in real conditions

    4–8 weeks

    Ship a portfolio project or take on Data Engineer tasks at work.

  7. 7. Get certified and position yourself as a Data Engineer

    4–8 weeks

    Technologies

    Google Professional Data EngineerAWS Data Analytics Specialtydbt Analytics Engineering

    Update your CV and LinkedIn around Data Engineer, then apply to target roles.

Alternative routes