Most institutions do not replace their core banking system outright; the risk and cost of a full replacement is rarely justified when the actual need is a specific capability the existing core cannot support. Our core banking work usually means building alongside an incumbent core, at the transaction event and customer record level.
This covers account management, ledger systems, digital wallets and lending platforms, whether that is a new capability layered on an existing core or a modernised replacement for one part of it.
What We Offer
Account and ledger systems
Double-entry ledger design and account management built for audit correctness, since a banking ledger has to be provably right, not just functionally correct.
Digital wallets and lending platforms
Wallet balance and transaction management, and lending origination and servicing systems, built to integrate with an existing core rather than assume a greenfield environment.
Core-adjacent integration
A transaction event stream your core can emit into, where the core itself cannot be modified, so new capability does not require touching the system of record.
Regulatory reporting hooks
Ledger and transaction data structured so it can feed AML, tax and prudential reporting without a separate reconciliation step.
How We Help
The central question in almost every core banking engagement is whether the existing core can emit an immutable transaction event stream. Where it can, we integrate at that level and build new capability without touching the core. Where it cannot, that gap becomes the first thing we build, because everything downstream depends on it.
We do not default to "replace the core." A full core replacement is a multi-year, high-risk undertaking that is justified far less often than vendors selling core replacements suggest, and we say so when a narrower, integration-based approach solves the actual problem.
Our Approach
We assess the existing core’s integration surface before proposing an architecture: what it can emit, what it can accept, and where the gaps are.
New ledger or account logic is designed to reconcile against the core’s own records continuously, not just at go-live, since a ledger discrepancy discovered months later is far more expensive to trace.
Technologies We Use
Industries We Support
Related case studies
- goAML-Integrated AML Monitoring for a Tier-1 Bank: Screening, monitoring and goAML reporting rebuilt around an immutable transaction event stream, so any alert can be reconstructed exactly as the system saw it.
- RAAST-Enabled Digital Wallet Built for Unreliable Networks: A consumer wallet with RAAST instant payments, where settlement finality and offline conflict resolution were design decisions rather than late discoveries.