Yoon Na

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Resume

Work Experience

2024 - Present

Software Engineer

Aptamigo

Chicago, IL

Architected an autonomous AI-powered SMS engagement system using TypeScript and LangGraph to enable real-time, after-hours lead follow-ups. Developed conversational AI agents that infer renter preferences and automate tour scheduling through structured JSON data integration. Successfully generated 15+ additional daily leads, significantly boosting sales agent productivity.

2023 - 2024

Software Engineer

SK Ecoplant Americas

Irvine, CA

Engineered a Django-based automated invoice portal, achieving $325K in annual cost savings. Managed the full development lifecycle from front-end design to AWS deployment, streamlining complex workflows for 50+ corporate users.

2015 - 2021

Senior Software Engineer / Manager

Hyundai Motors

Seoul, South Korea

Orchestrated the global rollout of high-performance manufacturing IT systems across 10 countries, processing data from 20,000+ machines. Designed a distributed data platform handling 2TB/year, achieving a 98% reduction in database load time (600s to 5s). Implemented statistical process control systems that reduced defects by 30% and saved $2.5M annually.

Technical Skills

Languages: TypeScript, Python, C++, SQL, R, MATLAB

AI/Robotics: Reinforcement Learning(SB3), LangGraph/LangChain, PyTorch, MuJoCo, OpenCV, Sim2Real

Frameworks/Libraries: Node.js, Django, MySQL, MongoDB, AWS, Distributed Systems

Databases: MySQL, MongoDB, VectorDB

Others: Operation Research, Traditional Statistics, Linux, Raspberry-pi, Arduino, GitHub

Education

2021 - 2022

University of Wisconsin - Madison

MS Computer Science

Advisor : Prof.Josiah Hanna

Madison, WI

Focused on Advanced Computer Science fundamentals with a specialization in Reinforcement Learning. Conducted research under Prof. Josiah Hanna, exploring complex algorithmic challenges and autonomous system behaviors.

2012 - 2013

Stony Brook University

BS Applied Mathematics & Statistics

StonyBrook, NY

Graduated Summa Cum Laude with a focus on Applied Mathematics and Statistics. Selected for a prestigious dual-degree program at Ajou University, South Korea, demonstrating strong analytical foundations and academic excellence.