Clean code practices, system design, architecture patterns, and development methodologies
Alert fatigue is the enemy of effective on-call. The alert audit, severity calibration, and multi-condition rules that reduced our page volume by 60% without missing a real incident.
Active-active multi-region gives you lower latency and higher availability. It also requires conflict-free replication or distributed consensus. Which matters more depends on your failure scenarios.
We migrated 14 repositories into a Nx monorepo. The codemod tools handled 70% of the work. The remaining 30% took most of the calendar time.
We didn't notice egress was 18% of our cloud bill until a board review forced a line-item audit. The architecture changes that followed were uncomfortable but necessary.
Sealed Secrets encrypts Kubernetes secrets for safe GitOps storage. External Secrets Operator pulls from AWS Secrets Manager, Vault, or GCP at runtime. The operational trade-offs.
A runbook that requires the on-call engineer to ask three colleagues for help is not a runbook — it's a treasure map. Runbook quality correlates with mean time to resolution in ways that are measurable.
Consumer lag is a lagging indicator. By the time it appears on a dashboard, the ordering guarantees you depended on may already be violated. How we set up lag alerting.
Five-person team, two time zones, one on-call rotation that doesn't burn people out. Here is what we landed on and what we changed after six months.
The N+1 query problem is GraphQL's original sin. DataLoader batches resolver calls; join-based approaches collapse them. Neither fixes a badly designed schema.
Most postmortems get filed and forgotten. The difference between a useful one and a formality is specificity of contributing factors and follow-up ownership.
Unit tests give fast feedback. Integration tests give confidence. Contract tests catch the API drift between services that integration tests miss until staging. All three are necessary.
The worst incidents I've been part of were slow not because the fix was hard but because decision authority was unclear. A runbook that helps with that.