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동진 김

@0006183

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I build and operate secure Kubernetes and cloud platforms for financial services.

South Korea

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At Toss Bank, I build and operate Kubernetes clusters across IDC and AWS EKS environments, along with Istio service mesh, monitoring, logging, and CI/CD platforms.

I've built Prometheus, Thanos, and Grafana monitoring systems, and logging platforms using Elasticsearch, Logstash, Vector, Kibana, Kafka, and ECK. I also automate operational work with Ansible, scripts, Terraform, and internal DevOps tools.

At KakaoBank, I implemented Kubernetes CI/CD platforms with GitLab, ArgoCD, GitOps, Helm, Argo Rollouts, SSO, and RBAC for a financial environment. I designed and operated EKS, AWS networking, multi-account environments, cloud governance, and secure on-premise connectivity.

My background also includes Docker platform operations, Harbor registry management, AWS infrastructure, and in-house system development. I previously worked as an Android developer and software engineer.

Experience

Work history, roles, and key accomplishments

Current

DevOps Engineer

Current

Toss Bank

Sep 2021 - Present (5 years)

1. Building & Operation Kubernetes Clusters
- Management multiple clusters on IDC
- Management multiple EKS clusters on AWS

2. Building & Operation Service Mesh with Istio
- Install & management Service Mesh
- Effective traffic management
- Enhanced security and service monitoring

3. Building & Operation Monitoring System
- Prometheus & Thanos & Grafana
- Sharding a lot of metric data by Thanos

Cloud Engineer

카카오뱅크 Kakaobank

Jan 2021 - Nov 2021 (10 months)

1. Building & operation Kubernetes echo system suitable for financial environment | kakaobank
- Implement and operate a Kubernetes CI/CD platform
ㄴ Continuous Integration with Gitlab & gitlab-runner
ㄴ Continuous Deployment with ArgoCD(GitOps)
ㄴ configManagementPlugin for external Helm chart registry
ㄴ argo-rollout for advanced deployment capabilities
ㄴ argocd-notifications for notifying C

DevOps Engineer

카카오뱅크 Kakaobank

Apr 2019 - Jan 2021 (1 year 9 months)

1. Building & upgrading Docker echo system suitable for financial environment | kakaobank
- Actively manage, improve and monitor Docker container CI/CD platforms
ㄴImprove deployment based on Ansible
ㄴBuilt and deploy BLUE/GREEN deployment feature
- Built and deploy Kubernetes cluster that complies with financial sector compliance
ㄴCreate provisioning script based on Ansible
ㄴCreate operation/user