Seun Lee
Software Engineer focused on creating fast, scalable, and intuitive products.
Frontend developer crafting scalable interfaces with React and TypeScript.
I'm currently in Seoul, South Korea - building performant web and hybrid experiences at Bnow.
Projects
A showcase of products I've independently led — combining design, development, and product management to deliver complete user experiences.
LiveCow
LiveCow — a hybrid web-app improving animal welfare and smart farming efficiency through AI-powered livestock health monitoring.
Built with Next.js 14, TypeScript, and TanStack Query. As the sole designer, product manager, and developer, I designed the entire service from brand identity to product interface, including the logo, visual system, and UI/UX design that connects data-driven livestock monitoring with approachable, human-centered design.




LiveCow Web
Developed LiveCow official service website with JavaScript-based interactive components and a custom multilingual system (Korean/English) using data-i18n attributes for seamless language switching.
Focused on creating a lightweight, accessible, and responsive interface that effectively communicates LiveCare's mission of advancing animal welfare and smart farming through AI-driven livestock health monitoring.
Bnow Web
Developed Bnow's official company website using React and CSS, handling both design and frontend implementation. Every visual element — from layout composition to graphic assets — was crafted directly using Photoshop and Illustrator.
Focused on creating a clean, futuristic design language that embodies Bnow's identity as an AI-driven, forward-thinking technology company, ensuring consistency between visual design and user experience across the site.
Modoo Map
Developed "Modoo Map", a map-based application designed to support socially disadvantaged individuals.
Built using Kotlin with a focus on clean architecture, applying domain separation to ensure high maintainability and scalability. Prioritized writing concise, readable code through consistent refactoring and minimizing unnecessary dependencies.




Blog
A collection of learning notes and personal retrospectives — capturing how I build, break, and grow as a developer and product maker.
Experience
The places I've worked and studied at.
- Developing performant web and hybrid experiences
- Building scalable interfaces with React and TypeScript
- Leading frontend development for AI-driven products
- Studying Software Engineering