Data Projects
Browse my data work tagged with "web-app".
Credit Risk Scoring API
DataCredit risk scoring API on the German Credit dataset. Three classifiers benchmarked; Logistic Regression wins by cost-weighted score. FastAPI serves predictions with plain-language explanations. Deployed on Azure via GitHub Actions CI/CD.
Hypothesis Testing Explorer — scipy and PySpark
DataUpload two CSV columns, select a test, get a plain-English verdict. Five hypothesis tests with automatic assumption checking. Datasets above 50,000 rows route through PySpark automatically.
NYC 311 PySpark ETL Pipeline
DataFour-stage PySpark ETL pipeline on 40M+ NYC 311 service requests. Identical pandas pipeline for direct comparison. Benchmarked at 100k, 1M, and 10M rows — showing the exact crossover where Spark's parallelism overcomes its initialisation overhead.
Programming Language Workforce Strategy — Data Analysis
DataStack Overflow lost 97.7% of its post volume since 2016 — and its momentum now anti-correlates with hiring demand. This project proves the signal is broken, then builds a four-source replacement index to answer which languages to hire for.
Telco Customer Churn Predictor
DataChurn prediction with plain-language risk explanations a retention team can act on. Logistic Regression wins (ROC-AUC 0.8362), benchmarked against Amazon Bedrock Claude Haiku 4.5 zero-shot — tied at 70%. Flask API on Azure.
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