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Infrastructure·10 min read·
Modernizing core banking APIs without the five-year rewrite
Strangler patterns, event buses, and contract tests that let you ship new products while legacy cores keep running.
Rise Engineering
Platform & infrastructure
Big-bang core replacements fail because risk committees are rational. Incremental extraction wins when each slice has measurable rollback.
We standardize on idempotent command APIs with versioned events downstream. Legacy adapters translate; product teams never see COBOL-era field names.
Contract tests between domains catch drift before production. Pact-style suites run on every deploy for payment and ledger boundaries.
The goal isn't microservices — it's replaceable seams.
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