Diagnosing a slow Go API: measure, profile and verify
Diagnose Go API latency with a reproducible baseline, focused profiles and an independent benchmark example before changing production code.
Engineering articles
Juan's Blog
Practical articles on Go, Kubernetes controllers, self-service platforms, GitOps, and reliable delivery.
Go 1.27: key improvements and fixes
A concise overview of Go 1.27 language, JSON, runtime and tooling improvements, plus the fixes in Go 1.27.1 and 1.27.2.
Why unit tests matter more in the age of AI
AI can help write code and tests. Learn how independent expectations, boundary cases, and fast Go tests keep that speed grounded in reliable behavior.
Kubernetes controllers: designing idempotent reconciliation
A practical starting point for self-service platforms: define desired state, reconcile safely, expose useful status, and test recovery.