Experience
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Data Engineer — UC3M & Kairós DS (Madrid, Spain)
· Designed and implemented end-to-end ETL data pipelines within AWS using Scala, Spark, and Python, processing gigabyte-scale datasets and reducing pipeline execution times by 30%.
· Orchestrated complex workflows using Apache Airflow, reducing data ingestion failures by 20% through automated retry mechanisms and real-time alerting.
· Optimized AWS cloud infrastructure costs by 15% through the migration and structuring of historical data lakes on Amazon S3 and Amazon Redshift, utilizing AWS Glue and Athena for data partitioning.
· Developed interactive Power BI dashboards connected to Athena and Redshift using dbt, reducing query cost and time by 40%.
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Martech Engineer — Merkle (Gijón, Spain)
· Architected multi-platform first-party data collection systems that scaled to process over 15M monthly events across enterprise clients, boosting data accuracy by 25% and unlocking actionable insights for personalized marketing.
· Implemented user consent and privacy management frameworks adhering to GDPR/CCPA regulations, ensuring 100% compliance across digital assets without compromising web performance.
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Internship — University of Oviedo (Gijón, Spain)
· Developed a neural network using PyTorch for signal detection and recovery in digital MIMO communication channel simulations, achieving a 94% signal recovery accuracy in high-noise research environments.