Hello! 👋
I'm Gym Coding, a coding education creator 😊
I teach as easily as possible so that even non-developers can follow along, and with enough depth to satisfy working professionals.
I am currently a full-stack developer with 13 years of experience and the CEO of an IT startup.
From developing services for major corporations like KT and Kia to the Cafe24 e-commerce platform, smart city IoT data platforms,
and even my own services that I currently operate, I have personally designed and built everything across front-end, back-end, and AWS infrastructure.
While currently focusing on education, I maintain my industry expertise by directly developing my own services.
Translating that real-world experience into language that even beginners can understand—that is what I do through my lectures.
🏆 Proven Results
🥇 Inflearn 2026 Claude Code Lecture BEST 1 - Claude Code Masterclass
🏆 Inflearn Awards 2025 Bestseller - React Complete Master
🔥 Inflearn 2025 'Hottest Course Right Now' - Claude Code Complete Master
🎬 YouTube 49k+ subscribers · 3.6M+ cumulative views
👨💻 Experience
13-year Full-stack Developer · Current IT Startup CEO
Frontend: React · Vue · TypeScript
Backend: Node.js · Java · Spring · Python
Infrastructure: AWS · Serverless · Lambda Architecture Design
Inflearn Knowledge Sharer
Startup (Entrepreneur)
Experience in patent and trademark application and registration
Selected for multiple government startup support programs (including 'Excellent' at Smart Venture Campus, etc.)
Corporate Training (B2B)
Multicampus - Offline 'Claude Code' training for corporate professionals
Shinhan Card Developer Training - Hosted by Multicampus, Online Live
Special Lecture at Korea Software HR Development Institute · Government IT Mentor
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