Can you really achieve fast core banking integration without replacing your entire system?
One financial institution just proved it’s possible. In just 60 days, Fimple delivered a complete fast core banking integration that connected seamlessly with their existing infrastructure. This successful implementation demonstrates how modern composable architecture enables rapid digital transformation while preserving your current investments.
The Challenge: Modernization Without the Risk
The institution needed to launch new digital products quickly. However, they faced a tight timeline and complex technical constraints. Specifically, their environment included:
- Custom single sign-on (SSO) and access controls
- Proprietary accounting rules and workflows
- An existing internal UI platform
- Multiple external data sources for customer and account information
Critically, they needed a fast core banking integration that wouldn’t disrupt their daily operations or compromise security.
Our Approach: Seamless Integration Through Composable Architecture
Rather than forcing the institution to adapt to our platform, we adapted our platform to their environment. Here’s how we achieved this fast core banking integration:
Secure Authentication Integration
First, we configured Fimple to accept tokens from the institution’s existing authentication system. Consequently, users experienced seamless access without duplicated credentials or security compromises.
Embedded User Experience
Next, we embedded the Fimple interface directly into the institution’s platform. Through smart SSO integration, users transitioned smoothly between systems while maintaining full context and permissions.
Accounting Harmony
Rather than replacing their accounting engine, we mapped our templates to their external rules. Additionally, we implemented comprehensive rollback capabilities to ensure transaction safety.
Universal Codebase Maintenance
Most importantly, we maintained our single codebase throughout this fast core banking integration. All adaptations occurred in the integration layer, preserving our platform’s upgradeability and scalability.
Results: Transformation Without Disruption
The institution achieved remarkable outcomes through this fast core banking integration:
- Production go-live within the 60-day target
- Complete SSO and security alignment
- Preserved accounting logic without business rule changes
- Full transaction safety with rollback support
- Zero product code customization
Why This Matters for Financial Institutions
This case proves that fast core banking integration is achievable without high-risk “rip-and-replace” approaches. Financial institutions can now accelerate their digital transformation while maintaining operational stability and security.
This is the first case study in our “Accelerated Banking Transformation” series. In our next installment, we’ll explore how we delivered a seamless integration for Exim Bank and how you can replicate this success.
Keep following to unlock the full blueprint for a fast, secure, and scalable transformation.
