I want to know what data engineering is all about. I come from a non‑tech background. Please explain it in two or three brief lines.

Data engineering is the practice of designing, building, and maintaining the systems that collect, store, and process large volumes of data. It involves creating reliable data pipelines that move data from source systems into data warehouses or lakes, ensuring data quality, and making the data accessible for analysis and machine learning. In short, data engineers turn raw data into clean, organized information that businesses can use to make decisions.