Hello! 👋
I'm Gym Coding, a coding education creator 😊
I teach simply enough for non-developers to follow, and with enough depth to satisfy professionals.
I am currently a full-stack developer of 13 years and the CEO of an IT startup.
I have personally designed and built everything from front-end, back-end, and AWS infrastructure, including service development for major corporations like KT and Kia, the Cafe24 e-commerce platform, smart city IoT data platforms,
and even the services I currently operate myself.
Currently, while focusing on education, I maintain my industry expertise by directly developing my own services.
Translating that real-world experience into a 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 Perfect Mastery
🏆 Inflearn Awards 2025 Bestseller - React Complete Master
🔥 Inflearn 2025 'Hottest Course Right Now' - Claude Code Complete Master
🎬 YouTube Subscribers 49k+ · Cumulative Views 3.6M+
👨💻 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)
📖 Corporate Training (B2B)
Multicampus - 'Claude Code' offline training for corporate practitioners
Shinhan Card Developer Training - Hosted by Multicampus, Online Live
Special Lecture at Korea Software HR Development Institute · Government IT Mentor
⭐️ View More
🏢 Corporate training, partnership, and advertising inquiries — biz@gymcoding.co
💬 General & Course Inquiries — hello@gymcoding.co