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The 3 AM Slack message every developer dreads Last month I got pinged at 3 AM because our cloud bill had tripled in 24 hours. No new deployments. No traffic spike. Just a number that climbed while everyone slept. If you've spent any time on a major c...

Last year our Datadog bill hit $38k/month. Leadership asked me to cut it in half. Here's how we got to $15k without losing a single useful signal. The 5 moves that worked 1. Dropped custom metrics with zero dashboard references. We had 2,400 custom m...

Every "AI app optimisation" post tells you to cache. None of them tell you which cache. There are at least three distinct caches that could live in an LLM pipeline, and they win in different places, stack in different orders, and fail in different wa...