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  1. file_cert file_cert Public

    A secure system for digital identity management, PAdES signature creation, and cryptographic verification of PDF documents. Built with Python & FastAPI.

    Python

  2. walmart_sales walmart_sales Public

    Sales forecasting for Walmart (M5 Competition) using Holt-Winters & Prophet. Achieved 7.09% MAPE by optimizing for trend-stationarity and seasonality.

    Jupyter Notebook

  3. universal_ecommerce_db_cs50sql universal_ecommerce_db_cs50sql Public

    A robust, normalized SQL database schema designed for a scalable e-commerce platform. Features multi-warehouse inventory management, secure PII handling via Views, and performance optimization usin…