Senior AI Engineer & AI Agent Developer - Healthcare RAG, AI Chatbot (LangChain, Claude)

Needed a senior AI engineer to build a RAG document-intelligence pipeline, AI agent, and source-cited chat assistant over our healthcare documents - claims, policy forms, and medical records. The system extracts and structures data via OCR, then answers questions through a conversational AI chatbot interface with grounded, source-cited responses that never fabricate a number or a code. Scope covered: structure-preserving ingestion with OCR fallback, hybrid retrieval with reranking over a vector database, an AI agent that validates entries and flags missing information or discrepancies for human review, and clean Python/LangChain deployment with citations on every answer. Accuracy-critical healthcare data with HIPAA-aware handling and an anti-hallucination architecture throughout. Delivered on time, production-grade.