The Danger of the "Big Bang" Migration
Many institutions attempt to modernize by replacing their entire core at once. This approach has a notoriously high failure rate. Instead, we advocate for a strangler fig pattern—incrementally migrating functionality to modern microservices while keeping the legacy core intact.
Why API-First?
By building a robust API layer over your legacy systems, you can begin delivering modern web and mobile experiences immediately. This decouples the frontend from the backend, allowing you to rewrite backend services at your own pace without disrupting the user experience.
"The goal isn't to get rid of legacy code. The goal is to isolate it so it stops slowing down your product development."
Our Phased Approach
- Assess & Isolate: Identify the most critical user journeys and isolate the underlying services.
- Build the API Layer: Create a modern, secure GraphQL or REST API that interacts with the legacy systems.
- Modernize the Frontend: Launch new mobile and web applications powered by the new API.
- Strangle the Core: Gradually replace the legacy backend services with modern, cloud-native microservices.
By adopting this pragmatic approach, banks in Southeast Asia can stay competitive without risking their foundational infrastructure.
