António Mendes Rosa.

I’m a data engineer working at the intersection of analytics, AI, and the messy reality of production systems. Most of my days are spent moving data around, building pipelines, modelling warehouses, and helping teams get to insight faster.

The stack I reach for most: Spark, Kafka, Databricks, Snowflake, dbt, and Airflow. Lately I’ve been spending a lot of time on the architecture side, and on figuring out where AI actually pays off in a real data platform.

This site is the working notebook, short pieces on what I learn, what breaks, and the small craft decisions that compound. No newsletter cadence, no SEO games. New posts when something is worth saying.