Cloud migrations have a reputation for chaos — frozen feature development, all-hands weekend cutovers, and the occasional multi-day outage. None of that is actually necessary with the right sequencing.
The approach that works reliably is incremental: stand up the new infrastructure alongside the old, mirror traffic to validate behavior under real load, and cut over service by service rather than all at once. Each step is reversible until the very last one.
Data migration is usually the riskiest part. Running dual writes during a transition window, with reconciliation jobs checking for drift, catches problems long before they reach production users.
None of this is exotic — it's disciplined, unglamorous engineering. But it's the difference between a migration nobody notices and one that ends up as a war story.
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