SRE / DevSecOps Engineer at Bungaejangter Inc., Seoul
Making services reliable and infrastructure repeatable.
| Date | Event | Talk |
|---|---|---|
| 2026.05 | Open Source Summit North America 2026 | Troubleshooting Like a Senior on Day 1: ReAct Agents With Real-Time Cluster Evidence (video) |
| 2026.04 | AWS KRUG 마곡 | EKS Pod Identity로 더 간편하게 Kubernetes 서비스 권한 관리하기 |
| 2026.01 | RAPA x AWS Cloud School | AWS Cloud School 그리고 그 다음 이야기 |
| 2025.09 | Cloud Native Korea Community Day 2025 | ArgoCD와 함께하는 Multi-Cluster 운영 (video) |
| 2024.06 | 제2회 AWS 강의실 온라인 세미나 | MicroK8s Cluster 구축하기 (video) |
- KubeRCA - AI agents that root-cause Kubernetes alerts from live cluster evidence. Project lead, and the subject of the OSS Summit talk above
- ssh-connector - turns
~/.ssh/configinto an interactive host picker, so connecting stops being a hostname you have to remember - aws-profile-pick -
awspickswitches the default AWS CLI profile from a grouped, filterable list, for shells that juggle several accounts - wtree -
wtmanages Git bare-repo worktrees in bulk, so a branch is a directory you cd into rather than a checkout you wait for. On PyPI - prjump -
prjopens the GitHub or Bitbucket pull request for the current branch straight from the shell. On PyPI
- CVE-2026-87776 / GHSA-vc2v-76pw-4v95 - credited as Finder on the Express.js
compressionadvisory. When a client hung up mid-response, the zlib stream was never destroyed, so repeatedly aborted requests leaked native memory until the process fell over. Found it from heap snapshots while chasing steadily climbing memory on a self-hosted n8n instance. High, CVSS 7.5; fixed in compression 1.8.2
- kyverno/kyverno#17840 - fixed the Helm pre-delete hook to target the release's namespace and fullname; added render regression checks
- oras-project/oras#2201 - made absolute-path push and attach errors explain the security risk before suggesting the opt-out flag
- oras-project/oras-www#610 - fixed the docs, blog, and community "Edit this page" links so they open GitHub's edit flow instead of a read-only tree view
- jaegertracing/jaeger-ui#4412 - made the span-details divider draggable from the timeline header: moved the resizer into
TimelineHeaderRowso one divider owns the boundary instead of two instances coordinated by CSS - grafana/loki#24300 - clarified the default
faketenant directory for Ruler local storage in single-tenant mode and how it differs fromrule_path - istio/istio#61512 - sped up
TestConvertResourcesby parallelizing its 28 subtests (~50% faster), part of the slow-unit-tests effort (#37555) - aws-observability/helm-charts#190 - added
dcgmExporter.enabledandneuronMonitor.enabledso the chart stops creating resources nobody asked for - strands-agents/harness-sdk#1906 - fixed 19 broken documentation links; listed under New Contributors in v1.35.0
- Run 150+ microservices on EKS: Istio service mesh, Gateway API, Envoy Gateway
- Keyless across two clouds: removed static AWS access keys, introduced GCP Workload Identity Federation
- Global traffic analysis and bot traffic mitigation
- Built and operate an in-house SRE agent for incident response
- Operate self-hosted n8n on Kubernetes as the automation platform other teams build on
- Introduced Packer golden images and ClamAV server antivirus
| Cloud | AWS - EC2, EKS, ECS, RDS, VPC, CloudFront, Lambda, WAF, Route 53 |
| Kubernetes | Istio, Helm, Karpenter, Cilium, Gateway API, Envoy Gateway, IRSA, Pod Identity |
| IaC / CI-CD | Terraform, Packer, Jenkins, GitHub Actions, Argo CD |
| Observability | Prometheus, Grafana, Thanos, Datadog, ELK |
| Security | IAM, Keycloak SSO, RBAC, External Secrets, ClamAV |
| Languages | Go, Python, Java |
- AWS Certified DevOps Engineer - Professional
- AWS Certified Solutions Architect - Associate
- Certified Kubernetes Administrator
- HashiCorp Certified: Terraform Associate
- Engineer Information Processing (정보처리기사)
- Fastfive x AWS Frugality Fest GameDay - Winner (2025.04)
- Students @ AI Seoul Hackathon - Winner (2025.04)
- AWS PS GameDay (GenAI) - 5th Place (2024.08)
- AWS x RAPA DevOps Jam - Runner-up (2023.12)



