Marcus Chen

Marcus Chen writes about distributed systems and cloud infrastructure: Kubernetes orchestration, PostgreSQL and Redis scaling, zero-downtime migrations, CI/CD design, and the observability that shows what actually broke.

He has run zero-downtime migrations on databases with live traffic, built observability stacks on OpenTelemetry and Prometheus, and moved workloads to edge networks without taking the site down. His writing favors patterns that have already survived production over greenfield architecture.

The recurring theme in his guides is cost and latency discipline. Most infrastructure problems are not exotic scaling failures, they are a missing index, an N+1 query, a cache with no eviction policy, or a backup nobody has restored.