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Malt Strategy
Sara B.SB

Sara B.

Data Scientist

€350/day
Barcelona, ES
3-7 years
Data science
Python
Pandas
Machine Learning

Average response time: 1 hour

About Sara

Data Scientist con formación en epidemiología y estadísticas. Tengo experiencia con python el ecosistema de data science relacionado con la visualización, exploración y análisis de datos así como el desarrollo y la aplicación de modelos de machine learning a big data. También he llevado a cabo proyectos de NLP (summarization)

  • French

    Native or bilingual

  • English

    Native or bilingual

  • Spanish

    Native or bilingual

  • German

    Conversational

Can work on-site
Barcelona (up to 50km)

Experience

  • VeryChic
    Lead Data Scientist
    LOGISTICS AND SUPPLY CHAIN
    June 2022 - February 2026 (3 years and 8 months)
    Barcelona, Spain
    – Led the Data Science department, owning all recommendation-based ML projects end-to-end.
    – Drove departmental growth and delivery through cross-functional leadership with Product, Engineering, and Business teams.
    – Improved performance of existing production models, including ensemble architectures, lifting key algorithmic KPIs.
    – Aligned data science work with business priorities to ensure measurable commercial impact.
  • PepsiCo
    Data Scientist
    July 2021 - May 2022 (10 months)
    Barcelona, Spain
    – Built a causal-impact engine from scratch to measure the true business effects of product changes and marketing campaigns.
    – Delivered product analytics for the Data & Analytics team, transforming raw data into actionable stakeholder insights.
    – Leveraged PySpark and ETL pipelines for large-scale data processing and predictive modelling.
    – Applied mathematical modelling and data-mining techniques to uncover patterns and support strategic decision-making.
    – Collaborated across product and analytics teams to scope problems and communicate results effectively.
    Python Machine Learning Data science Latent Dirichlet Allocation matplotlib
  • Weenect
    Data Scientist (Freelance)
    February 2019 - December 2019 (10 months)
    Paris, France
    – Applied clustering algorithms to identify distinct pet activity patterns, powering a customer-facing activity tracking feature.
    – Built an energy-expenditure model combining activity data with biological factors to target pet obesity reduction.
    – Created executive dashboards and data-visualisation reports to communicate department insights to leadership.
    Visualización de datos Python Data science Multinomial Naive Bayes Pandas

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Education

  • Master en Salud Publica (Epidemiologia)
    Universidad Miguel Hernandez de Elche
    2016
  • MBA (Master in Business Administration)
    Universidad Miguel Hernandez de Elche
    2018
Check out Sara's education

Skill set

Visualización de datos
NLP
Scikit-learn
Bootstrap
Latent Dirichlet Allocation
Multinomial Naive Bayes
Nltk
Spacy
Kmeans
numpy
matplotlib
seaborn

Categories