How we modernized a 12-year-old enterprise platform without a rewrite — and why the strangler-fig pattern still wins.
The temptation with legacy systems is to rewrite. The reality is that rewrites fail more often than they succeed. We prefer the strangler-fig: wrap, intercept, and replace one capability at a time.
On a recent engagement we migrated a 12-year-old monolith over 14 months with zero downtime and continuous feature delivery. The platform shrank from 1.2M lines to 380k, while throughput improved 4x.
Incremental beats heroic. Always.
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