I will clean your data with python and sql

Brazil

I speak English, Portuguese

AI Model Evaluator and Data Analyst

Bilingual (Portuguese/English) AI model evaluator and data analyst with 3 years evaluating AI-generated content for accuracy, coherence and guideline adherence, and 2 years building analytics pipeline...
About this Gig

Messy data slowing you down? I can clean, organize and analyze your data so you can make decisions with confidence. I'm a data analyst with 2 years of experience in SQL, Python (Pandas, NumPy, SciPy, Scikit-learn), BigQuery and Google Sheets.


WHAT I CAN DO?

- Clean data: missing values, duplicates, outliers and inconsistent formats;

- Join and structure datasets in SQL or Python;

- Exploratory analysis with clear charts and summaries;

- Statistical analysis: hypothesis testing, correlations and customer segmentation (RFM);

- Simple predictive models, such as risk classification.


WHAT DO YOU GET?

- A clean, documented dataset (CSV or xlsx);

- A short written summary of findings;

- The notebook or script, so you can reproduce the work.


My portfolio includes loan default risk modeling, hypothesis testing on music data, customer segmentation and ETL pipelines. Send me your data and your goal, and I will confirm scope and timing before we start.

My Portfolio

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