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Darío Díaz BarrosDD

Darío Díaz Barros

Data Scientist / Data Analyst / Business Analyst

350 €/día
Madrid, ES
0-2 años

Tiempo medio de respuesta: 1h

Acerca de Darío

I am a Data Scientist and Business Analyst with a strong background in Psychology, specialized in transforming data into actionable business and people-centered insights. My dual expertise allows me to bridge the gap between analytics and human behavior — turning complex data into clear, strategic decisions.

I help organizations extract value from data through advanced machine learning, predictive modeling, and data visualization. My experience includes building interpretable models (SHAP, PDP, ICE), optimizing pipelines with Python, SQL, and Power BI, and designing ROI-driven simulations to guide investment and business decisions.

I’ve led projects combining AI, behavioral analytics, and business intelligence, delivering measurable impact on decision-making, marketing, and people analytics.

What I offer:
• End-to-end Data Science projects (from cleaning to visualization)
• Predictive analytics and business KPIs modeling
• Dashboarding & storytelling for executive audiences
• Experiment design, A/B testing, and behavioral analysis

Let’s work together to turn your data into insight, and your insight into growth.
  • Español

    Bilingüe o nativo

  • Inglés

    Bilingüe o nativo

  • Francés

    Competencia profesional básica

Acepta trabajo presencial
Madrid (hasta 50 km)

Experiencia

  • Complutense University of Madrid
    Data Science Master’s Final Project – Founder Personality Investment Score (FPIS)
    AGENCIAS DE SUBCONTRATACIÓN
    enero de 2024 - junio de 2025 (1 año y 5 meses)
    Madrid, España
    - Built a predictive KPI for startup success using Big Five traits + team composition metrics on 21k startups.
    - Applied ML models (LogReg, XGBoost, LightGBM, MLP) with Optuna hyperparameter optimization and calibration.
    - Improved metrics over baseline.
    - Designed ROI simulations validating +15% expected return vs random strategies.
    - Delivered interpretable outputs with SHAP, PDP/ICE, enabling investor-ready insights.
    Machine learning Deep Learning Python SQL Business Intelligence (BI)
  • Universidad Complutense de Madrid
    Master’s Degree in Data Science, Big Data & Business Analytics - 2024-2025
    AGENCIAS DE SUBCONTRATACIÓN
    enero de 2024 - julio de 2025 (1 año y 6 meses)
    Madrid, España
    Data Science Master’s Final Project – Founder Personality Investment Score (FPIS)
    Complutense University of Madrid | 2025
    Built a predictive KPI for startup success using Big Five traits + team composition metrics on
    21k startups.
    Applied ML models (LogReg, XGBoost, LightGBM, MLP) with Optuna hyperparameter
    optimization and calibration.
    Improved metrics over baseline.
    Designed ROI simulations validating +15% expected return vs random strategies.
    Delivered interpretable outputs with SHAP, PDP/ICE, enabling investor-ready insights.
    Data Mining Competition – Pump it Up: Water Table
    Complutense University of Madrid | DrivenData | 2025
    Built classification models to predict water well functionality, handling a large, noisy dataset.
    Improved model accuracy through data cleaning and feature engineering, showcasing
    adaptability to real-world data challenges.
    Demonstrated ability to apply ML techniques in an international competition with real-world
    impact.
    Machine learning Deep Learning Business intelligence Python SQL

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Formación

  • Master’s Degree in Data Science, Big Data & Business Analytics
    Complutense University of Madrid
    2025
    Master’s Degree in Data Science, Big Data & Business Analytics
  • Master's Degree in Artificial Intelligence and Innovation
    FOUNDERZ BUSINESS SCHOOL & MICROSOFT
    2023
    Master's Degree in Artificial Intelligence and Innovation

Conjunto de habilidades profesionales

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