Changetheblock, a custom software development firm, is hiring a Data Engineer / BI Developer for a hybrid role in Madrid. Day to day: designing and maintaining ETL/ELT pipelines, building Bronze/Silver/Gold data lakes, optimizing analytical databases, and creating data models to support business decisions. Core stack: SQL, PostgreSQL, Python, and Airflow, with ClickHouse, Power BI/Qlik, and Kubern
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