Osama Hasan

Core Team (BNPL fintech): - Partner API to onboard merchants, shops and billing entities - Dispute Management system with consumer and merchant portals - Paid snooze feature for dunning emails - End-to-end integration of a new debt collection agency - Email delivery tracking with automatic fallback to postal letters - Tool to validate and sync email/PDF templates across environments Tech: Django, DRF, Celery, Kafka, PostgreSQL, React

Pricing Team: - Integrated an experimentation platform for A/B testing - Integrated a third-party promotion service for coupons and campaigns - Built and maintained pricing strategies - Environmental impact calculations per ride and vehicle type - Reusable audit module to track model changes Shop Team (temporary): - Helped extract a microservice from a legacy monolith, incl. data migration and gradual traffic switch Tech: Django, DRF, FastAPI, TypeScript

Projects: - TFB (The Food Box): web system to track charity donation deliveries (Google Reverse Geocoding, GeoPal API) - DHAS company system used by all departments; integrations with accounting app, KNX data logger and phone system; TCP/IP servers for license plate cameras and car GPS units - Smart Strike Machine: embedded training system (Raspberry Pi, PyQt, Arduino, C++, UART, I2C) - Data Logger Device (Arduino, Raspberry Pi, MSSQL) - BARCIO store access control (Raspberry Pi, PyQt, SQLite)