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vildanpir/README.md

Hi, I'm Vildan Pirpiroglu

Data & Analytics professional based in the Netherlands. I turn raw and operational data into reliable analyses, clear visualizations, and practical data products using Python, SQL, Tableau, machine learning, and Streamlit.

I'm particularly interested in energy and sustainability applications, while remaining open to data opportunities across sectors.

Portfolio LinkedIn Tableau Public

Featured work

Project What it demonstrates
Smart Power — Live app · Tableau · Code End-to-end Netherlands energy analytics across 4 APIs and 1,170 hourly records: UTC-aligned ETL, MySQL, EDA, machine learning, Tableau, and Streamlit
Vanguard A/B Test Experiment design, completion metrics, statistical testing, and business-threshold evaluation
Credit Card Fraud Detection Imbalanced classification with a locked final test set, SMOTE, model comparison, and responsible-use limits
Marketing Campaign Performance Weighted funnel metrics, ROAS/CPA analysis, reproducible reporting, and careful non-causal interpretation
Global Shark Incident Analysis Data cleaning, regex-based standardization, EDA, and explicit exposure/reporting limitations

Toolkit

Python · pandas · NumPy · scikit-learn · SQL · MySQL · Tableau · Streamlit · Git/GitHub

How I work

I care about reproducible workflows, honest metric definitions, and communicating clearly what the data can—and cannot—support.

Pinned Loading

  1. smart-power-project smart-power-project Public

    End-to-end Netherlands energy analytics with API ingestion, SQL, machine learning, Tableau and Streamlit.

    Jupyter Notebook

  2. vanguard-ab-test vanguard-ab-test Public

    A/B test analysis of Vanguard's UI redesign: completion, navigation friction, statistics and business thresholds.

    Jupyter Notebook 2

  3. credit-card-fraud-detection credit-card-fraud-detection Public

    Imbalanced credit-card fraud classification with validation-based model selection and a locked final test set.

    Jupyter Notebook

  4. data-wrangling-project data-wrangling-project Public

    Forked from teresamendescoelho-cpu/Project-3-data-wrangling-project

    Marketing campaign performance analysis with weighted funnel metrics, ROAS, CPA and reproducible reporting.

    Jupyter Notebook

  5. Week-2-Project-Shark-Attacks- Week-2-Project-Shark-Attacks- Public

    Forked from mocihu-source/Week-2-Project-Shark-Attacks-

    Reproducible cleaning and EDA of global shark incident records with explicit reporting and exposure limitations.

    Jupyter Notebook