Hernan Rochon

BizSentinel - End-to-end ML platform for e-commerce customer intelligence

• Detects at-risk customers, anomalous transactions and churn signals so SMBs can act before losing revenue - 97,896 customers scored
• Implemented privacy-preserving ML with HMAC pseudonymization and differential privacy (ε≤5)
• 127 unit tests, 82% coverage

Stack: Python, LightGBM, Kedro, MLflow, FastAPI, Docker

Hardware Pulse - PC hardware price intelligence system

• Helps Uruguayan PC buyers time their purchase and find the cheapest retailer across GPUs, CPUs, SSDs and RAM
• Three-tier entity resolution (exact → regex → fuzzy) reconciles inconsistent retailer listings into canonical SKUs, so comparisons are reliable

Stack: Python, BeautifulSoup, SQLite, RapidFuzz, Scikit-learn, Streamlit

Music Taste Recommender - Business-driven hybrid recommendation engine

• Boosts music discovery without sacrificing relevance - raising genre diversity from 19% to 70% at a 0.89 relevance score, so listeners explore more of the catalog without churning out
• Evaluated across 500 simulated users and 5 configurable business strategies

Stack: Python, Sentence-Transformers, Scikit-learn, Streamlit, Hugging Face