Kathleen Sungu Lee

Experience

1. Senior Software Engineer

   Oracle

   Sep 2022 — Present · San Francisco, CA, US

   Led the migration of Oracle’s receipt recognition product from traditional ML models to a GenAI-powered, multi-tenant architecture, improving scalability and delivering 15–20% accuracy gains in core expense fields. This directly advanced Oracle’s Touchless Expenses initiative, enabling customers to create expenses automatically by simply uploading or photographing receipts.• Contributed to the mass architectural shift toward the new BOSS architecture, refactoring legacy codebases to support Oracle’s latest expense automation platform.• Designed and delivered agentic flows for unstructured document uploads, automating parsing and structured extraction across PDFs, images, emails, and other formats.• Developed cloud-native microservices and REST APIs (Java, Helidon, Kubernetes) integrated with Oracle ERP, ensuring scalability, reliability, and enterprise adoption.• Collaborated with cross-functional teams (engineering, product, QA) to deliver features end-to-end, from backend services and GenAI pipelines to model evaluation and customer-facing workflows.