I am a versatile Software Professional with over 23 years of experience (since 2002). My career spans a wide range of technical roles, including Technical Writer, Solution Architect, Backend Engineer, and Desktop Application Developer.
Currently, I work as a Solution Architect at Megazone Cloud, specializing in .NET ecosystems and cloud infrastructure.
- Microsoft MVP (16 consecutive years): Awarded for Developer Technologies (2009 ~ Present).
- Community Leader: Founder of dotnetdev, the largest .NET developer community in Korea.
- Windows Container Pioneer: Successfully architected and operated production game servers on Windows Containers for over a year. 👉 Read the Tech Blog (Korean)
- Culture & Documentation: As a Technical Writer, I built an enterprise portal that transformed the engineering culture, featured as a global best practice. 👉 Read the Notion Customer Story
- Creator of TableCloth: Developed a widely used sandbox tool for Korean internet banking security.
Backend & Core
Cloud & Infrastructure
Web & AI
- TableCloth (Primary Project)
- Description: A sandbox tool that isolates Korean internet banking security programs using Windows Sandbox.
- Tech: WPF, Windows Sandbox API, .NET
- Media Coverage: Featured in ETNews for its impact on improving banking security experience. 👉 Read the Article (Korean)
- AdmxPolicyManager
- Description: A library for managing Windows Group Policy (GPO) programmatically.
- TableClothLite
- Description: An AI Chat frontend powered by OpenRouter, fully implemented with Blazor WebAssembly (WASM).
- Highlight: Demonstrates modern frontend capabilities and Generative AI integration.
- Experimental.System.Messaging
- Description: Porting legacy MSMQ to .NET Core/Standard for modernization.
- Highlight: Critical for migrating enterprise legacy systems to modern architecture.
- WebsockifySharp
- Description: A .NET implementation of Websockify (WebSocket to TCP proxy/bridge).
- Highlight: Implementing low-level network protocols in C#.
- wsl-sdk-com
- Description: Dealing with WSL distributions via COM interface.
- dotnetpy
- Description: Facilitating Python script execution within .NET environments.
- MVP Profile: mvp.microsoft.com
- Blog: devwrite.ai
- LinkedIn: linkedin.com/in/rkttu
- Email: rkttu@rkttu.com