David Rosales Argüello
Data Scientist / ML Engineer / Data Engineer
I am a Data Science and Engineering professional with over three years of experience and a Master’s degree in Economics and Computer science. I specialize in designing and optimizing end-to-end ETL/ELT data pipelines and deploying advanced Machine Learning solutions, including RAG systems and deep learning models. My expertise lies in bridging the gap between raw data and strategic decisions by building scalable architectures and interactive visualizations that transform complex datasets into high-impact business insights.
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Criteo GPU Uplift
GPU-accelerated XGBoost pipeline for extreme class imbalance on 14M CRITEO records.
Airflow ETL Pipeline
Data pipeline to extract, transform, and load data from different sources to a PostgreSQL database (SCD Type 2).
Sentiment Analyzer
ML model (Logistic Regression + TF-IDF) exported to JS for real-time client-side inference.
Try it Live! 👇
TOEFL iBT Scores
Open
GCP Foundations
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Power BI Analyst
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Python Programming
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AWS Data Engineering
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Data Insights
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Data Cleaning
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Data Literacy
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EDA
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IBM ML EDA
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IBM ML Regression
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Meta Python
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Meta Version Control
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Meta Backend Intro
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Meta Databases
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Data Engineering
OpenEmail: contact@davidra.dev
