Santiago User

I’m a Senior Data Engineer who designs, builds, and optimizes end-to-end data lifecycles—from extraction and transformation to loading and analytical delivery. I specialize in ETL/ELT workflows that power Data Lakes, Data Marts, and cubes, transforming complex structures into reliable decision-ready outputs.

In recent work, I architected scalable cloud-based data infrastructure on AWS, delivering centralized Data Marts and relational databases that improved query performance and accelerated data retrieval by 40%. I also build robust Python-based pipelines with Pandas and PySpark, and I back them with strong Data Engineering best practices to maintain 99.9% data accuracy and integrity across reporting layers.

I’m equally focused on how data reaches people. I deliver highly interactive BI dashboards using Microsoft Power BI and Looker Studio, enabling executive teams with real-time visual insights that reduce manual effort and speed up strategic decision-making.

Beyond traditional pipelines, I automate operations and enrich datasets with APIs, web scraping, and ERP/AI integrations. I develop Power Automate workflows (including Power Automate Desktop), apply prompt engineering and LLMs for unstructured data processing, and design AI-informed automation with governance-minded accuracy—while continuously improving reliability, uptime, and compliance.