Infrastructure engineer focused on Kubernetes platforms, AWS cost and reliability, and the observability that makes both measurable. I build the boring defaults that let product teams ship without inventing operational practice from scratch.
Experience
Staff Engineer · Platform Engineering
2024 — Present
Seoul
Owned a multi-tenant Kubernetes platform serving 40 services and 12 teams
Reduced production restart incidents by 62% through probe and sizing standards
Introduced deployment guardrails that cut median rollout time to under 4 minutes
Senior Engineer · Cloud Infrastructure
2021 — 2024
Seoul
Built a cost attribution pipeline covering 98% of monthly AWS spend
Removed 31% of recurring waste in the first quarter of operation
Led migration of stateful workloads to managed services with zero downtime
Software Engineer · Backend Systems
2018 — 2021
Delivered latency work that moved p99 checkout time from 1.8s to 640ms
Introduced tracing across seven services and the shared runbook that used it