Alejandro Peñas Bernardos

I’m a results‑driven Data Scientist and Machine Learning Strategist with a proven track record of delivering high‑impact, revenue‑boosting analytics solutions for clients across finance, healthcare, and non‑profits. As a self‑employed professional based in Spain, I’ve reduced data processing times by up to 90%, increased model accuracy above 98%, and automated reporting workflows that saved organizations tens of thousands of euros annually.

My expertise spans end‑to‑end data science: from designing robust ETL pipelines and building explainable ML models (Random Forest, XGBoost, SHAP interpretability) to deploying interactive dashboards and automated PowerPoint reports via Python and the OpenAI API. I thrive on turning messy, incomplete datasets into clear, actionable insights that drive strategic decisions and measurable ROI.

Clients choose me because I deliver value—not just code. Whether you need customer segmentation, predictive maintenance models, or custom data automation, I combine technical excellence with a business‑first mindset to ensure every project maximizes efficiency and profitability. Fluent in English and Spanish, I offer flexible remote engagement (except Tuesdays and Wednesdays) and invoice directly as a registered autónomo in Spain, simplifying contracting and compliance.

If you’re ready to transform your data into your company’s most valuable asset—and see returns that far exceed your investment—let’s connect.