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Piergiacomo FonsecaPF

Piergiacomo Fonseca

Data Scientist/Analyst | ML Engineer - PhD

€250/day
Barcelona, ES
3-7 years

Average response time: 1 hour

About Piergiacomo

I am a Data Scientist with experience in the acquisition and analysis of big datasets, results interpretation, and data visualization.
Specialized in the development of data-driven solutions, from data scraping, to data ETL automation, to Machine Learning modeling.

- Google Cloud Certified Professional Machine Learning Engineer
- Google Cloud Certified Professional Data Engineer

I have a background in physics with a PhD in quantum photonics at UCL, and Post-doctoral investigation experience in UK, Italy and Spain.

Fast learner, strongly focused and perseverant, with a high sense of duty, analytical rigor and attention to details. Definitely a team player, with valuable communication skills and international work and life experiences.
Fluent in Italian, English and Spanish.

PROGRAMMING skills:
_Phyton : PyCharm, Jupyter Notebooks
[pandas, geopandas, numpy, scipy, statsmodel, scikit-learn, keras, matplotlib, seaborn, google api....]
_SQL : MySQL, Postgres, Google BigQuery
_Google Apps Script
_Numerical Modeling/Analysis -> Mathematica, Matlab, OriginLab
_Looker Studio
_Tableau
  • Italian

    Native or bilingual

  • English

    Fluent

  • Spanish

    Fluent

Remote only
Primarily works remotely

Experience

  • DDMind
    Data Scientist
    April 2025 - Today (1 year and 2 months)
    Barcelona, Spain
    Agentic AI platform for private-market investors, combining LLMs with quantitative engines to deliver verifiable, IC-ready analyses.
    • Owner of the Quant Insights module: end-to-end design and development of the data analysis pipeline
    • Development of Agentic Workflows: AI-driven data ingestion (Excel/CSV) with automatic table recognition, schema summaries, health checks, and agent-led cleaning with human-in-the-loop
    • Library of configurable analyses (aggregations, time-series, etc.) with interactive tables, charts, and LLM-generated insights explaining results
    • Full-stack contributions: Streamlit prototyping → backend integration, plus frontend work (AG Grid)
    Python Fullstack AI Agents Data Pipelines Financial Analysis
  • Hoverture
    Data Scientist
    January 2022 - Today (4 years and 5 months)
    Barcelona, Spain
    • Helping translate business problems into data science models
    • Data scraping, cleaning, and development of databases -Python/SQL
    • Project and development of ML algorithms
    • Support digital/data driven transformation projects - Google Cloud Platform
  • Unioncrate
    Data Analyst
    September 2021 - January 2022 (4 months)
    Barcelona, Spain
    Building a next-generation AI integrated business planning platform
    • Responsible for onboarding processes, analysis and evaluation of clients data
    • Developing ETL processes, integration pipelines, data formatting automation Python/SQL
    • Working with Account Management teams for service improvements - clients reports

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Education

  • Doctor of Philosophy
    UCL
    2017
    Doctor of Philosophy - PhD, Physics
  • Master of Physics
    University of Camerino
    2013
    Master's degree, Physics

Certifications

Skill set

Categories