• Built Python FastAPI backend integrating BERT NER to auto-extract disaster type and affected location from 100+ Google RSS feeds daily; stored 5,000+ alert records in MongoDB. • Developed Android app (Java + XML) with Retrofit2 and Firebase Cloud Messaging (FCM) for city-specific push notifications (Delhi, Mumbai, Assam) — 50+ active beta users across 5 Indian states. • Implemented 3-tier severity classification (High/Medium/Low) for instant risk context without reading full alerts. • Stack: Python · FastAPI · MongoDB · BERT NLP · Java · XML · Retrofit2 · Firebase Cloud Messaging