Context
A high-growth SaaS platform was missing p95 targets during peak hours. Feature work couldn't stop, and security debt was accumulating.
Approach
- •Modular-monolith plan; dual-run/blue-green cutovers
- •Distributed tracing on hot endpoints; DB index & cache tuning
- •Error budgets + observability with SLOs
- •No feature freeze; release guardrails
Results
Methodology →p95 latency
840 ms → 450 ms
-46%
Critical CVEs
7 → 0
pre-go-live
Infra spend/month
$42k → $33k
-21%
Error rate
0.68% → 0.39%
-43%
Stack & Integrations
Rails
Postgres
Redis
Grafana/Prometheus
Nginx
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