# Kathleen Sungu Lee

> Senior Software Engineer @ Oracle | CS @ Columbia

Location: Redwood City, California, United States
Profile: https://flows.cv/kathleensungulee

## Work Experience
### Senior Software Engineer @ Oracle
Jan 2022 – Present | San Francisco Bay Area
• 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.

### Graduate Student @ Columbia University in the City of New York
Jan 2021 – Jan 2022 | New York, United States
• Completed the following relevant coursework: Artificial Intelligence, Applied Deep Learning, Natural Language Processing, Computer Vision, Cloud Computing, Advanced Software Engineering, Advanced Database Systems, Computer Networks, Analysis of Algorithms, 3D UI and Virtual Reality

### Software Engineer @ MedySapiens, Inc.
Jan 2020 – Jan 2020 | Seoul, South Korea
• Devised and managed AWS cloud architecture for AI-based skin evaluation system at MedySapiens, a biotech startup in Series-A
specializing in cognitive computing for healthcare
• Expedited labeling medical image dataset by integrating AWS Sagemaker into workflow
• Improved classification accuracy of skin damage in new image dataset by 5%

### Research Assistant @ Columbia University in the City of New York
Jan 2019 – Jan 2019 | Greater New York City Area
Columbia Computer Graphics and User Interfaces Lab (CGUI) 
• Developed a VR platform with Unity that allows multiple users to simultaneously interact with a map embedded with geotagged data (social media, real-time traffic, etc)
• Integrated Instagram and Yelp data to the platform and created map navigation functionalities

Columbia Computational Design Lab
• Built a Proof of Concept web application on which scientists can publish their work in the form of Twitter threads 

Columbia Computer Vision Laboratory (CAVE)
• Designed and deployed database of news articles to AWS cloud for the Cross Cultural Analysis Project, which aims to distinguish cultural differences between two countries presented in video news
• Implemented automation of keyword extraction and its analysis from video data
• Optimized search queries for video data collection by providing blacklist and whitelist words

### Software Development Intern @ Qualcomm
Jan 2018 – Jan 2018 | Greater San Diego Area
• Enhanced test frameworks for computer vision applications on Snapdragon 855 chip for Samsung Galaxy S10
• Generated Python test scripts for DENSO robot arm to physically test the Snapdragon X50 5G modem
• Initiated and composed internal Python programming guide for the DENSO robot arm

### Advisory Engineer Intern @ EY
Jan 2017 – Jan 2017
• Established automation of member enrollment data at MetLife using BluePrism robotic process automation software
• Organized and directed training sessions on BluePrism for ten new interns and current employees
• Analyzed domestic fintech trends and compiled conclusion to senior partners

### Programming Director @ Girls Who Code
Jan 2017 – Jan 2017 | Greater New York City Area
• Led weekly curriculums on Python and Java for local underprivileged high school students
• Managed publicity team and published weekly newsletter containing details of upcoming tech panels and news
• Planned several fundraisers and raised total of $5,000 to fund transportation for students to Columbia campus


## Education
### Master's degree in Computer Science
Columbia University

### Bachelor of Science (B.S.) in Computer Science
Columbia University

### International Baccalaureate Diploma in High School/Secondary Diplomas and Certificates
Seoul Foreign School


## Contact & Social
- LinkedIn: https://linkedin.com/in/kathleensungulee

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Source: https://flows.cv/kathleensungulee
JSON Resume: https://flows.cv/kathleensungulee/resume.json
Last updated: 2026-03-29