Legacy systems often run the most critical parts of a business, which is exactly why replacing them is so risky. Rather than rewriting everything at once, we recommend the strangler pattern: wrap the old system with APIs and move capabilities across one at a time.
Each migrated module ships to production on its own, with automated tests and monitoring, so value arrives early and problems stay small. Cloud-native infrastructure and CI/CD make these frequent, low-risk releases possible.
Over months, the new platform grows while the old one shrinks — until it can be retired without a disruptive cut-over weekend.