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Daniel Beato MedinaDB

Daniel Beato Medina

Fractional Data Lead | AI, Analytics & Data Strate

€500/day
Madrid, ES
8-15 years

Average response time: 1 hour

About Daniel

Fractional Data Lead with experience building and scaling AI, analytics and data platforms across adtech, banking and aerospace.

I help companies design reliable data infrastructures, improve decision-making and deliver production-grade ML/AI systems.

Experienced in leading cross-functional data teams, defining data strategy and building cloud-native solutions on AWS, GCP and Azure.

Background across scale-ups and enterprise environments including programmatic advertising and banking.

Available for fractional leadership, AI initiatives and data strategy engagements.
  • Spanish

    Native or bilingual

  • English

    Native or bilingual

  • French

    Native or bilingual

  • Chinese

    Conversational

  • Japanese

    Conversational

Remote only
Primarily works remotely

Experience

  • Refinery89
    Data Lead
    TECH
    July 2025 - Today (1 year)
    Madrid, Spain
    - Planning and execution of the data and machine learning strategy
    - Responsible for data modeling and data governance
    - Cloud-based (AWS, GCP) architecture of data infrastructure and products
    - Leadership of the Data team (data engineering, AIops, analytics...)
    - Design, monitoring and maintenance of pipelines
    - End to end responsibility for data-driven solutions (DS, ML, AI...)
    Amazon Web Services (AWS) AI/ML Data science Python Online Advertising
  • Santander Digital Services,
    Principal data scientist
    BANKING AND INSURANCE
    June 2020 - June 2025 (5 years)
    Boadilla del Monte, MD, Spain
    • - Technical lead of a team of 5 data scientists and 3 data engineers driving key ML/AI initiatives.
    • - Main backend developer of the ML/AI solutions supporting the ITops area of Banco Santander.
    • - In charge of 7 projects including RAG from finely tuned LLM based on chatGPT, graph solutions, time series anomaly detection, optimization of resources, etc.
    • - Design of suitable algorithms and pipelines both from scratch and from pre-existing software solutions using python, scikit-learn, hugging face, openai, tensorflow, lightgbm and more.
    • - Big data exploitation from ElasticSearch, postgreSQL and spark.
    • - Deployment and management of the solutions on the Azure cloud platform.
    • - Training and mentoring of junior colleagues.
    Python (Programming Language) Generative AI Data science Machine Learning Banking and Financial Services
  • Sotec Consulting,
    Data specialist
    BANKING AND INSURANCE
    August 2018 - June 2020 (1 year and 10 months)
    Boadilla del Monte, MD, Spain
    • - Providing the main areas of the company with valuable information based on the data available in the data lake. The lake is based on HDFS. Use of Impala and Spark on a regular basis.
    • - Development of machine learning models by means of Python's specialized libraries such as scikit learn or tensorflow.
    • - Text processing and automatic information extraction by applying classical methods from NLP.
    • - Communication with project managers with the intention of identifying new possibilities for them based on data analytics.
    • - Design, implementation and optimization of specially tailored algorithms.
    • - Preparation of visualisation tools for making it easier to understand the data of the company.

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Education

  • Ph.D student with teaching duties
    Université Aix-Marseille
    2016
    Ph.D student with teaching duties
  • Ph.D in nanoscience and condensed-matter physics
    Aix-Marseille Université
    2016
    Ph.D in nanoscience and condensed-matter physics

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