I Asked 5 Senior AWS Engineers What They Wish They Knew Before Their First Production Incident. Their Answers Surprised Me.
Five senior engineers share the one lesson from their first major production incident that changed how they work forever, honest, occasionally funny, and something every builder can relate to.
Everyone has a "the moment it all went wrong" story. I asked five senior AWS engineers — people with 8+ years of production experience — what they wish someone had told them before their first real incident. Their answers weren't about technical skills. They were about mindset.
1. "Nobody is impressed that you stayed calm and silent. Say something."
One engineer described sitting on a growing S3 cost spike for two hours because she wasn't "sure enough" to raise the alarm. By the time she spoke up, it had tripled. Her lesson: a wrong guess said out loud beats a correct guess kept quiet.
One engineer described sitting on a growing S3 cost spike for two hours because she wasn't "sure enough" to raise the alarm. By the time she spoke up, it had tripled. Her lesson: a wrong guess said out loud beats a correct guess kept quiet.
2. "Your first instinct to roll back is usually right. Trust it faster."
An engineer who'd been debugging a cascading Lambda failure spent 40 minutes trying to find the "real" root cause mid-incident, when rolling back immediately would've stopped the bleeding. His rule now: stabilize first, investigate after.
An engineer who'd been debugging a cascading Lambda failure spent 40 minutes trying to find the "real" root cause mid-incident, when rolling back immediately would've stopped the bleeding. His rule now: stabilize first, investigate after.
3. "The incident isn't the scary part. The postmortem blame-hunting is."
One engineer said the actual outage was less stressful than worrying about who'd get blamed in the retro. Teams with blameless postmortems recover faster — and engineers who've experienced both say the difference is night and day.
One engineer said the actual outage was less stressful than worrying about who'd get blamed in the retro. Teams with blameless postmortems recover faster — and engineers who've experienced both say the difference is night and day.
4. "You will forget everything that happened within 48 hours. Write it down live."
A senior SRE keeps a running incident log open the entire time — timestamps, actions, hypotheses, even the wrong ones. Not for the postmortem. For her own sanity when writing it later.
A senior SRE keeps a running incident log open the entire time — timestamps, actions, hypotheses, even the wrong ones. Not for the postmortem. For her own sanity when writing it later.
5. "The best engineers aren't the ones who never cause outages. They're the ones who've caused one and changed how they build because of it."
This was the line that stuck with me most. Every senior engineer in this list had a story. None of them were ashamed of it.
This was the line that stuck with me most. Every senior engineer in this list had a story. None of them were ashamed of it.
My takeaway: the gap between junior and senior isn't "never breaking things." It's how fast you speak up, how fast you stabilize, and how honestly you debrief afterward.
What's the lesson your first production incident taught you? I want to hear it, I'll reply to every single comment on this one.
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