Full Stack AI Engineer at Novartis Pharma Schweiz

Designed and shipped a LangGraph-based LLM RAG system (Python, FastAPI, Azure) serving 3,000+ enterprise users worldwide. Delivered a 30% increase in operational efficiency and $30M in annual cost savings. Built a multimodal document ingestion pipeline using Azure Document Intelligence (layout parsing, bounding box detection, textual extraction) to process complex unstructured documents at scale and reduce downstream hallucinations. Developed a React interface for real-time document navigation, AI output verification, and citation tracking, reducing response verification time by 60%. Optimized retrieval for high recall (90%+ across RAGAS) with query expansion, term standardization, and targeted filtering. Engineered GDPR compliance via NER-driven PII/out-of-scope validation and built an Azure Functions verification pipeline enabling fact-checking through a React-PDF viewer.