At Homzmart, I designed and built the Order Management System from scratch in Go, replacing the legacy Magento backend. It handles the full order and item lifecycle, including state changes, cancellations, returns, and refunds.
I improved order and item search response times from 4–5 seconds to 150–250 milliseconds, and made bulk status updates about four times faster than the legacy path. I also reworked Elasticsearch indexing for more than 500,000 documents.
At Eventec, I built RESTful APIs in Python and FastAPI for an event management and booking platform, and extended its multi-tenant MongoDB schemas. I introduced unit tests across core services.
At EGBANK, I used Python and SQL to automate data extraction and transformation and analyze more than 800,000 rows of retail risk data. For Weather Atlas, a graduation project built with Egypt's Ministry of Environment, I developed a FastAPI backend with PostGIS to analyze more than 20 million climate records.

