Geonhyuk Im
@geonhyukim
Site reliability and DevOps engineer focused on scalable, cost-efficient cloud infrastructure.
What I'm looking for
I am a site reliability and DevOps engineer with hands-on experience operating large-scale production systems for high-traffic platforms. I built zero-downtime EKS upgrade workflows, provisioned Istio Ambient Mesh, and managed monitoring and incident response for services with millions of users.
I led infrastructure-as-code adoption across teams, authored and refactored large Terraform codebases, and created CI/CD platforms with GitHub Actions to improve deployment speed and reliability. I have reduced cloud costs, optimized observability stacks, and implemented resilient networking and security practices.
I hold a B.S. in Computer Science and certifications including CKA and AWS Solutions Architect Associate. I enjoy building production-grade Kubernetes clusters and GitOps pipelines that make frequent, safe delivery and robust operations possible.
Experience
Work history, roles, and key accomplishments
Site Reliability Engineer
Joonggonara
Nov 2025 - Dec 2025 (1 month)
Built a zero-downtime EKS upgrade environment supporting 4.5M MAU by refactoring Terraform modules and upgrading 15+ Helm charts; provisioned Istio Ambient Mesh and decoupled AWS Load Balancer lifecycles to improve resilience during DDoS events and strengthen VPC security.
Server Engineer
FACTBLOCK
Jun 2024 - Aug 2025 (1 year 2 months)
Led IaC adoption across a 50,000+ line Terraform codebase and built 24/7 monitoring for ECS Fargate and blockchain validator nodes; reduced AWS DB costs 40% and implemented CI/CD with GitHub Actions to cut frontend deployment time by 40%.
Education
Degrees, certifications, and relevant coursework
Purdue University Northwest
Bachelor of Science, Computer Science
2018 - 2021
Grade: 3.86
Completed a Bachelor of Science in Computer Science with a minor in Applied Mathematics, graduating with a 3.86 GPA in May 2021.
Availability
Location
Authorized to work in
Website
geonhyukim.comPortfolio
github.com/igh9410/igh9410-infra.gitSalary expectations
Social media
Job categories
Skills
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