Seoyul Yoon👋

A cloud-native engineer who learns from the community and proves it in production.

🚀 Profile

• Position: SK Inc. AX Cloud Application Engineer
• Primary Role: Application development for achieving observability and increasing productivity
• Tech Community: Cloud Native Community Korea | Slack
• Open Source: Kubernetes (SIG DOCS) DevStats
• Specialization: Cloud native architecture, Cloud management platform development (Kubernetes Operator, API Gateway, DevOps automation)

📊 CNCF DevStats!

🛠 Tech Stack

Core Technologies

Skills & Experience

💼 Project

AXMP AI Agent Studio

• MCP Server Builder operator development
• FastAPI development for OpenAPI-to-MCP conversion
• Repository-Adapter Pattern architecture

Modernization Platform API Management (APIM)

• Kubernetes native gateway and API management service platform development
• API public portal, usage approval, registration, and permission management system development
• API logging, monitoring, security, and traffic control solution architecture

Key Achievements

• Deployment Efficiency: Reduced delivery lead time from 3 days to 1 day with Helm packaging
• Performance Optimization: Reduced frontend deployment time by 60% (30m → 10m) with multi-architecture build support
• Infrastructure Automation: Built CI/CD pipelines and implemented Blue-Green deployment automation
• Monitoring: Developed Kubernetes resource management operator and multi-cluster Kubernetes metrics aggregation API
• Performance Improvement: Resolved latency issues and OOM errors by migrating event receiver tech stack from Java to Go
• Cost Optimization: Adopted Scheduled Auto Scaling and ARM architecture

🌟 Community Activities

Leadership Positions

• Cloud Native Community Korea (2026~ ) - Head of Community Ops & Organizer
• Kubernetes Organization Member (2022~ 2025) - SIG DOCS Korean localization contributor
• NAVER Cloud Platform Tech Ambassador (2023~ 2026.02) - Led tech community operations and offline meetups
• GopherCon Korea 2023, 2024 Organizer - Organized Korea's first Golang conference, managed sponsorships
• KCD Korea 2023 Organizer - Committee (Swag Planning)

Speaking Engagements

• Datadog Korea User Group (2025.02) "Log-Based API Management Strategies and Gateway Utilization in MSA"
• AWS Korea User Group #architecture (2022.06) "Mastering Infrastructure Benchmark Testing"

Recognition

• 2022 Open Source Contribution Academy Lead Mentee - Awarded the NIPA Director's Prize

📜 Certifications

Kubernetes & Cloud Native

• Kubestronaut (2026)
• CKS: Certified Kubernetes Security Specialist (2026)
• KCSA: Kubernetes and Cloud Native Security Associate (2025)
• KCNA: Kubernetes and Cloud Native Associate (2024)
• CKAD: Certified Kubernetes Application Developer (2024)
• CKA: Certified Kubernetes Administrator (2023)

AWS

• AWS Certified Data Engineer – Associate (2024)
• AWS Certified SysOps Administrator: Associate (2024)
• AWS Certified Developer: Associate (2023)
• AWS Certified Solutions Architect: Associate (2022)

🎯 Engineering Philosophy

"Mutual growth through sustainable development and open source contribution"

• Motivation: A determination to grow as an IT engineer that started from a remote pet feeding project for a friend's dog
• International Experience: Learned the importance of communication through working in Japan and collaborating with teams in Vietnam
• Open Source Philosophy: The joy of communication is the driving force of growth
• Technical Contribution: Advancing the global open source ecosystem and improving tech accessibility in Korea

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💬 Contact: Open source contributions and community collaboration are welcome