Platform / DevOps Engineer · GitLab & Observability · Kubernetes

---

👨‍💻 About me

name: Joshua (홍성현)
role: Platform / DevOps Engineer
focus:
  - GitLab enterprise operations & CI/CD
  - Observability architecture (metrics, logs, traces)
  - Kubernetes platform engineering
currently_learning:
  - OpenTelemetry & eBPF-based observability
  - Platform engineering practices
philosophy: "Automate the toil, observe everything, ship safely."

• 🛠️ I build and operate GitLab, CI/CD, and Observability platforms for enterprise environments.
• 📊 I design monitoring/tracing/logging stacks with Prometheus, Grafana, Loki, Tempo, Mimir, OpenTelemetry.
• ☸️ Day-to-day in Kubernetes: Helm, ArgoCD, runners on K8s, and air-gapped image workflows.
• 🌍 I give back to the cloud-native tools I use — contributions across 50+ open-source projects including Prometheus, Kubernetes, Docker (moby), Terraform, Cilium, and more.

---

🧰 Tech Stack

Orchestration & GitOps

CI/CD & SCM

Observability

Languages & Platform

---

📊 GitHub Stats

---

🌱 Open Source

I contribute fixes and features to the cloud-native / DevOps ecosystem — from documentation and broken links to real bug fixes (e.g. CJK column-width handling in k9s) and i18n (Korean translations for lazydocker and Jenkins).

Projects I've contributed to include prometheus · kubernetes · moby (Docker) · terraform · helm · cilium · argo-cd · dagger · trivy · cert-manager · containerd · thanos · opentofu — and many more.

👉 Running log: oss-contributions

---

📫 [email protected]  •  Automate the toil, observe everything, ship safely.