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Rafael G. — Mid-Level Data Science Specialist from Mexico

Rafael G.

Mid-Level Data Science Specialist

Mexico 1-2 years
Open to offersNew to Platform
Languages
EnglishSpanishFrench
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About

Rafael G. is a seasoned Data Scientist based in Estado de México, Mexico, with a comprehensive background in finance. He is adept in developing end-to-end machine learning solutions, ranging from data cleaning and exploratory data analysis to the training and evaluation of both supervised and unsupervised models, employing techniques such as linear regression, decision trees, random forests, and neural networks. Rafael has demonstrated his proficiency in implementing complex data projects, such as mobile plan classification and customer churn prediction, achieving significant performance benchmarks. His expertise extends to industries requiring deep analytical rigor, including finance and legislative data management. At the Chamber of Deputies, he managed large datasets to streamline municipal financial analysis, and as an independent portfolio manager, he engaged in real-time financial analysis using Python. Rafael holds a Master's degree in Data Science and is a CFA Program Candidate, reflecting his strong foundation in mathematics and statistics.

Experience

  • Technical Specialist (Data & Analytics)

    Chamber of Deputies · 2025 — 2026
    Designed and maintained structured datasets containing historical municipal revenue and expenditure data from 1989 to 2025. Conducted data cleaning, validation, normalization, and cataloging, enhancing data quality and reusability through Python-based pipelines. Built financial features for statistical and quantitative analysis and developed financial projections considering inflation and deflators. Analyzed excise tax-related datasets to support data-informed decision-making. Organized a centralized data repository to improve traceability and dataset reuse. Produced analytical reports and visualizations aimed at non-technical stakeholders.
  • Front Office Manager

    Private Company · 2024 — 2025
    Coordinated team activities and workflows, enhancing operational efficiency through metric-driven performance assessments and periodic reporting.
  • Independent Portfolio Manager

    null · 2023 — 2024
    Analyzed financial time series and equity assets in real time using Python for optimizing capital allocation decisions. Developed a quantitative model that integrated market and macroeconomic data for systematic asset screening.

Skills & Expertise

Education

  • Master's Degree in Cybersecurity
    UCAM · 2024 — 2025
  • Master of Science in Data Science
    DEV.f · 2023 — Present
  • Bachelor of Finance and Banking
    EBC · 2017 — 2021

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