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README.md

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+![header](https://capsule-render.vercel.app/api?type=blur&color=gradient&height=300&section=header&text=Nkey's%20Record🎶&fontSize=90&fontColor=023373)
+
+## 👋 About Me
+
+Back-end Developer focused on **DevOps, Observability, and Automation**.  
+I enjoy turning “ops pain” into **reliable, observable, automated** systems.
+
+---
+
+## 🚀 Highlights
+
+- **~57% faster** GitHub integration response time via **Redis token caching**
+- Built an incident-response automation flow: **Automation 100% / Success 80% / MTTR -43%**
+- Operate self-hosted infrastructure with CI/CD, monitoring, and backup practices
+
+---
+
+## 🧩 Projects
+
+### Colio (Feb 2025 – Present) · Backend
+
+Experience-based portfolio editor & hiring connection platform.
+
+- GitHub API features + **Redis caching** to reduce latency (**~57%**)
+- Search with **MongoDB + Atlas Search**
+- CI/CD with **Docker Compose + GitHub Actions**
+- Integrations: **AWS S3 / SES**, **Solapi (Alimtalk)**
+
+### HUFS CES Capstone (Sep 2025 – Dec 2025) · Infra / Backend / Frontend
+
+AI Assistant flow for incident mitigation in a cloud-infra environment.
+
+- **K3s** cluster on **3 Raspberry Pi nodes**
+- **Tailscale VPN** for remote access & inter-system connectivity
+- Observability stack: **Prometheus / Loki / Alertmanager**
+- Automation: **n8n + Ollama (llama3)** with verification/feedback loop
+- Result: **Automation 100% / Success 80% / MTTR -43%**
+
+### NkeysWorld (Jan 2026 – Present) · Personal Infrastructure
+
+Self-hosted code management + study + monitoring platform.
+
+- **Oracle Cloud (OCI)** + **Docker / Compose**
+- **Gitea + Gitea Runner** CI/CD 운영
+- **Nginx + Certbot**, **FastAPI + n8n** workflows
+- Operates a Discord bot that delivers coding-test problems on schedule
+
+---
+
+## ⚙️ Tech Stack (Unified Badges)
+
+### Languages
+
+![Python](https://img.shields.io/badge/Python-0B0B0B?style=flat-square&logo=python&logoColor=white)
+![Java](https://img.shields.io/badge/Java-0B0B0B?style=flat-square&logo=openjdk&logoColor=white)
+![C](https://img.shields.io/badge/C-0B0B0B?style=flat-square&logo=c&logoColor=white)
+![JavaScript](https://img.shields.io/badge/JavaScript-0B0B0B?style=flat-square&logo=javascript&logoColor=white)
+![Bash](https://img.shields.io/badge/Bash-0B0B0B?style=flat-square&logo=gnubash&logoColor=white)
+![R](https://img.shields.io/badge/R-0B0B0B?style=flat-square&logo=r&logoColor=white)
+
+### Backend / Frameworks
+
+![Django](https://img.shields.io/badge/Django-0B0B0B?style=flat-square&logo=django&logoColor=white)
+![DRF](https://img.shields.io/badge/DRF-0B0B0B?style=flat-square&logo=django&logoColor=white)
+![FastAPI](https://img.shields.io/badge/FastAPI-0B0B0B?style=flat-square&logo=fastapi&logoColor=white)
+![Spring Boot](https://img.shields.io/badge/Spring%20Boot-0B0B0B?style=flat-square&logo=springboot&logoColor=white)
+![Laravel](https://img.shields.io/badge/Laravel-0B0B0B?style=flat-square&logo=laravel&logoColor=white)
+
+### Frontend
+
+![React](https://img.shields.io/badge/React-0B0B0B?style=flat-square&logo=react&logoColor=white)
+![Next.js](https://img.shields.io/badge/Next.js-0B0B0B?style=flat-square&logo=nextdotjs&logoColor=white)
+![Vercel](https://img.shields.io/badge/Vercel-0B0B0B?style=flat-square&logo=vercel&logoColor=white)
+
+### Database / Cache / Search
+
+![PostgreSQL](https://img.shields.io/badge/PostgreSQL-0B0B0B?style=flat-square&logo=postgresql&logoColor=white)
+![MongoDB](https://img.shields.io/badge/MongoDB-0B0B0B?style=flat-square&logo=mongodb&logoColor=white)
+![MySQL](https://img.shields.io/badge/MySQL-0B0B0B?style=flat-square&logo=mysql&logoColor=white)
+![Redis](https://img.shields.io/badge/Redis-0B0B0B?style=flat-square&logo=redis&logoColor=white)
+![Atlas Search](https://img.shields.io/badge/MongoDB%20Atlas%20Search-0B0B0B?style=flat-square&logo=mongodb&logoColor=white)
+
+### Infra / DevOps
+
+![Docker](https://img.shields.io/badge/Docker-0B0B0B?style=flat-square&logo=docker&logoColor=white)
+![Docker Compose](https://img.shields.io/badge/Docker%20Compose-0B0B0B?style=flat-square&logo=docker&logoColor=white)
+![Kubernetes](https://img.shields.io/badge/Kubernetes-0B0B0B?style=flat-square&logo=kubernetes&logoColor=white)
+![K3s](https://img.shields.io/badge/K3s-0B0B0B?style=flat-square)
+![Nginx](https://img.shields.io/badge/Nginx-0B0B0B?style=flat-square&logo=nginx&logoColor=white)
+![Linux](https://img.shields.io/badge/Linux-0B0B0B?style=flat-square&logo=linux&logoColor=white)
+![GitHub Actions](https://img.shields.io/badge/GitHub%20Actions-0B0B0B?style=flat-square&logo=githubactions&logoColor=white)
+![Gitea](https://img.shields.io/badge/Gitea-0B0B0B?style=flat-square&logo=gitea&logoColor=white)
+
+### Observability (Monitoring / Logging)
+
+![Prometheus](https://img.shields.io/badge/Prometheus-0B0B0B?style=flat-square&logo=prometheus&logoColor=white)
+![Grafana](https://img.shields.io/badge/Grafana-0B0B0B?style=flat-square&logo=grafana&logoColor=white)
+![Loki](https://img.shields.io/badge/Loki-0B0B0B?style=flat-square&logo=grafana&logoColor=white)
+![Alertmanager](https://img.shields.io/badge/Alertmanager-0B0B0B?style=flat-square&logo=prometheus&logoColor=white)
+![Fluent%20Bit](https://img.shields.io/badge/Fluent%20Bit-0B0B0B?style=flat-square)
+
+### Automation / Workflow / Collaboration
+
+![n8n](https://img.shields.io/badge/n8n-0B0B0B?style=flat-square&logo=n8n&logoColor=white)
+![Jira](https://img.shields.io/badge/Jira-0B0B0B?style=flat-square&logo=jira&logoColor=white)
+![Discord](https://img.shields.io/badge/Discord%20Webhooks-0B0B0B?style=flat-square&logo=discord&logoColor=white)
+
+### Cloud / Networking / Ops
+
+![AWS](https://img.shields.io/badge/AWS-0B0B0B?style=flat-square&logo=amazonaws&logoColor=white)
+![Oracle%20Cloud%20OCI](<https://img.shields.io/badge/Oracle%20Cloud%20(OCI)-0B0B0B?style=flat-square&logo=oracle&logoColor=white>)
+![Tailscale](https://img.shields.io/badge/Tailscale-0B0B0B?style=flat-square&logo=tailscale&logoColor=white)
+![Ollama](<https://img.shields.io/badge/Ollama%20(llama3)-0B0B0B?style=flat-square>)
+![Restic](https://img.shields.io/badge/Restic-0B0B0B?style=flat-square)
+![Solapi](https://img.shields.io/badge/Solapi-0B0B0B?style=flat-square)
+
+---
+
+## 🏆 Awards & Activities
+
+- Leader of LIKELION Global 12th cohort
+- **Top Award (1st place)** · 2023 Inter-university Hackathon (10 universities)
+- Linux Master Level 1
+
+---
+
+## 🔗 Links
+
+- Portfolio (Gitea): https://nkeystudy.site/gitea/
+- LIKELION Archive: https://velog.io/@hufsglobal09/series/HUFSLION12th-Archive
+
+[![hits](https://myhits.vercel.app/api/hit/https%3A%2F%2Fgithub.com%2Fsm4640?color=blue&label=hits&size=medium)](https://myhits.vercel.app)