• Developed a Retrieval Augmented Generation (RAG) system to evaluate insurance claims against 200+ denial codes. Integrated external eligibility data (via APIs and phone calls) and clinical notes as retrieval components to support the LLM for precise claim-denial analysis• Led development of a scheduled, multithreaded system to process EDI data and perform eligibility checks, scaling to 50,000 insurance claims daily. Implemented extensive error handling to easily identify failed claims, diagnose reasons for failure, and enable seamless reprocessing• Tech Stack: Java + Spring Boot, Python, Typescript, PostgreSQL, AWS, Docker