A data engineering roadmap crossed my feed recently. It is thoughtful, detailed, and 571 lines long. The associated Reddit discussion had a predictable reaction: useful reference, terrifying learning plan. That distinction matters. A map can show every road in a country. It does not mean you need to drive every road before you are allowed to leave home. The Data Engineering Roadmap 2026 covers software engineering, Python, SQL, operational databases, warehouses, lakehouse storage, orc...