DevOps Engineer @ Chronicle — the decentralized oracle network securing DeFi protocols.
I own the reliability and infrastructure behind Chronicle's oracle publishing pipeline, ensuring continuous on-chain data delivery across EVM chains. Oracle downtime means DeFi protocol risk, so everything I build is designed for zero-downtime and rapid incident response.
🔭 Building and operating Kubernetes-based oracle infrastructure on AWS EKS
🚀 Driving GitOps adoption with ArgoCD app-of-apps pattern across multi-environment deployments
📊 Designing the observability platform — Grafana, Mimir, Loki, and Alloy — for oracle liveness monitoring
🏗️ Managing infrastructure-as-code with Terraform, Helm, and IPFS-based immutable configuration
🔥 Leading on-call and incident response for critical oracle infrastructure
🌱 Deep diving into eBPF and kernel-level observability
📫 Reach me: dev.koriel@gmail.com (personal) | jinsoo@chroniclelabs.org (work)
| Chronicle 2025 — Present |
DevOps Engineer — Decentralized oracle network securing DeFi protocols Kubernetes (EKS) · ArgoCD GitOps · Grafana/Mimir/Loki · Terraform · Helm · Incident Response |
| Dunamu 2023 — 2025 |
DevOps Engineer — Upbit, South Korea's largest crypto exchange Kubernetes (EKS & kOps) · Istio service mesh · Kong API Gateway (Lua plugin dev) · AWS network architecture · SLA/SLO/SLI dashboards (Datadog & Grafana) · eBPF-powered observability · Internal tooling (Go & Python) |
| PUBG 2020 — 2022 |
Lead, Network Security / DevSecOps Engineer — PUBG: NEW STATE eBPF + XDP DDoS protection · Load tested for 10M+ concurrent users · Kubernetes HPA with custom Prometheus metrics · EKS + Terraform + Helm · Istio service mesh · Jenkins CI + ArgoCD CD · Infrastructure optimization at scale |
Total Time: 7 hrs 40 mins
Other 43 hrs 53 mins █████████████████████▒░░░ 85.13 %
JavaScript 3 hrs 7 mins █▓░░░░░░░░░░░░░░░░░░░░░░░ 06.06 %
Markdown 1 hr 51 mins █░░░░░░░░░░░░░░░░░░░░░░░░ 03.61 %
Terraform 53 mins ▒░░░░░░░░░░░░░░░░░░░░░░░░ 01.72 %
YAML 48 mins ▒░░░░░░░░░░░░░░░░░░░░░░░░ 01.58 %
Bash 13 mins ░░░░░░░░░░░░░░░░░░░░░░░░░ 00.45 %
TypeScript 11 mins ░░░░░░░░░░░░░░░░░░░░░░░░░ 00.38 %
Python 10 mins ░░░░░░░░░░░░░░░░░░░░░░░░░ 00.35 %
Open to collaboration on DevOps, Web3 infrastructure, and high-availability distributed systems!
