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Arturo Del ReyAD

Arturo Del Rey

Data Architect

€400/day
Valladolid, ES
8-15 years

Average response time: 1 hour

About Arturo

Arquitecto de Datos con más de 8 años de experiencia diseñando plataformas de datos enterprise en Python, Databricks y Snowflake.
Lo que hago:

→ Integración avanzada de IA en flujos de trabajo: desarrollo asistido por LLMs con arquitectura MCP (Model Context Protocol) para conectar modelos de lenguaje directamente con Databricks, sistemas de ficheros y APIs en tiempo real. Uso de agentes de código (Claude Code), servidores MCP custom para operaciones sobre clusters, notebooks, jobs y SQL warehouses, y generación automatizada de bundles y documentación técnica. No es prompt engineering básico: es infraestructura de IA integrada en el ciclo de desarrollo real.

→ Diseño e implementación de pipelines ETL/ELT en producción: ingesta, transformación, validación y entrega. He construido arquitecturas medallion (bronze/silver/gold) en Databricks con Unity Catalog, Delta Lake y despliegue automatizado via GitHub Actions.

→ Arquitectura Snowflake a escala enterprise: 4 años construyendo la infraestructura de datos de Inditex, uno de los mayores grupos retail de Europa. Modelado de esquemas, optimización de rendimiento y transformación con DBT.

→ Plataformas de datos completas: actualmente responsable de una plataforma con 20+ proyectos de datos en producción, 75+ jobs automatizados y 10 áreas de negocio cubiertas, coordinando múltiples proveedores tecnológicos. Frameworks propios de governance, calidad y observabilidad del dato.

→ Análisis cuantitativo: motores de backtesting, procesamiento de datos financieros, optimización walk-forward con Optuna, series temporales sobre 10+ mercados europeos.
Entrego software que funciona en producción, no presentaciones. Comunicación directa, plazos realistas, código mantenible.

Stack: Python, PySpark, SQL, Databricks (Unity Catalog, Delta Lake, Asset Bundles), Snowflake, DBT, Azure (Data Factory, Data Lake, Functions), Streamlit, Optuna, Git/GitHub Actions, MCP, Claude Code.
  • Spanish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Molins (via SDG Group)
    Data Architect
    January 2026 - Today (6 months)
    • • Designed and built production ETL pipelines on Databricks following medallion architecture (bronze/silver/gold) for the company's enterprise data platform.
    • • Automated CI/CD deployment with GitHub Actions across dozens of dimension and fact tables, creating reusable templates for rapid onboarding of new data bundles.
    • • Data ingestion from SAP, Oracle, and multiple enterprise sources with PySpark transformation logic and quality validation at each layer.
    • • Architecture design and technical leadership for data platform strategy and cloud migration.
  • Inditex (via SDG Group)
    Data Engineer / Specialist
    January 2022 - January 2026 (4 years)
    • • Designed data extraction and transformation pipelines for one of Europe's largest retail groups, handling massive data volumes across multiple business units.
    • • Snowflake architecture design: schema modeling, data warehousing, and query performance optimization at enterprise scale.
    • • Cloud migration to Azure: Data Factory orchestration, Blob Storage, Azure Functions for event-driven processing.
    • • Data transformation pipelines with DBT and Snowflake, ensuring data quality and full traceability.
  • Hotelbeds Group
    Data Engineer
    April 2019 - August 2021 (2 years and 4 months)
    • • Liaison between BI department and business units for migration of data flows and reports to Snowflake and Tableau using agile methodology.
    • • Designed data flows unifying multiple sources; modeled Snowflake schemas and built dashboards for various departments.
    • • Developed new KPIs to improve visibility on company performance across departments.

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Education

  • Master's in Big Data Science
    University of Valladolid (UVa)
    2021
    Master's in Big Data Science
  • Degree in Physics
    University of Valladolid (UVa)
    Degree in Physics

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