METHODOLOGY · Methodology

Zero incidents in 180 days of production

What changes when your infrastructure has no probabilistic fallbacks. Lessons from running production systems with formal verification.

MAR 27, 2026 7 dk okuma Wizutech Engineering

The Claim

180 days of production. Zero incidents. No probabilistic fallbacks.

How

Every decision path is formally verified before deployment. The system cannot reach an unhandled state — if it could, the deployment is blocked.

Trade-offs

Deployment takes longer. Engineering velocity drops ~15% vs. ship-fast culture. But zero incidents means zero pager calls, zero customer-facing outages, zero post-mortems.

For production infrastructure, this trade is worth it.

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Wizutech Engineering

Wizutech Engineering

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