Hi, I'm HyoGeun Kim
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Specializing in Web Performance Optimization, FSD Architecture, and building scalable SaaS Platforms. I transform complex problems into elegant, high-performance web solutions.
About Me
I am a Frontend Engineer with 1.5 years of experience, specializing in web performance optimization, scalable architecture, and seamless system integrations.
My expertise lies in building large-scale applications using Feature-Sliced Design (FSD) and optimizing bundle sizes for lightning-fast user experiences. I have a proven track record of reducing load times by nearly 50% and handling complex data visualizations.
Beyond coding, I am passionate about creating type-safe ecosystems using tools like Directus CMS and integrating secure payment flows with Stripe. I thrive in environments where technical excellence meets user-centric design.
Performance Obsessed
Expert in bundle optimization, code splitting, and dynamic imports to ensure maximum speed.
Scalable Architecture
Building maintainable, large-scale applications using Feature-Sliced Design (FSD) principles.
System Integration
Seamlessly integrating Stripe payments and Headless CMS (Directus) with type safety.
Experience
My professional journey and key achievements.
Frontend Engineer
Building a high-performance membership platform for investment portfolio analysis.
- Optimized bundle size by 46% (253KB → 136KB) through code splitting and dynamic imports.
- Implemented Feature-Sliced Design (FSD) architecture for scalable development.
- Integrated Stripe payments and Directus CMS with full type safety.
- Solved complex chart rendering issues with Lightweight Charts.
Frontend Engineer
Developed location visualization services and e-commerce platforms.
- Built 'The Prestige', a funeral home location service using Kakao Map API.
- Improved UX by implementing tab-based filtering and Image CDN with Lazy Loading.
- Developed a web gift mall using React, Vite, and Zustand.
- Implemented robust data persistence using LocalStorage to prevent data loss.
Frontend Engineer
Selected as a trainee for the prestigious software talent nurturing program.
- Developed 'Kumo Factory', a No-Code Cloud Deployment platform.
- Built a Drag & Drop UI for designing cloud infrastructure.
- Implemented real-time deployment logs using Server-Sent Events (SSE).
- Optimized UX with SSR (Server-Side Rendering) in Next.js 13.
Frontend Developer
Core member of Google Developer Student Clubs.
- Developed a Shared Fridge Service using Next.js 12 and React Query.
- Implemented optimistic updates for seamless user interaction.
- Built interactive map pages and donation forms.
Technical Skills
Technologies I work with to bring ideas to life.
Frontend Core
Styling & UI
State & Data
Infrastructure & Tools
Integrations
Featured Projects
A selection of my recent work.
AwareLab Membership
Investment portfolio analysis platform with high-performance charts.
The Prestige
Funeral home location visualization service with map integration.
Kumo Factory
No-Code Cloud Deployment Platform with Drag & Drop UI.
Let's Connect
I'm currently available for freelance work or full-time positions. If you have a project that needs some creative touch, or just want to say hi, feel free to drop me a message.