Client
Nordvik Bank
- Industry
- BFSI
- Duration
- 11 months
- Team size
- 7
-70%
Settlement time
Weeks → hours
Audit prep
0
Audit findings
The challenge
Nordvik’s settlement ran on a batch-based legacy core that could not keep pace with transaction growth. Overnight batches delayed settlement, and reconstructing transaction history for auditors took weeks of manual work.
Our solution
We embedded an augmented pod alongside Nordvik’s engineers and incrementally replaced the core using a strangler-fig pattern. New settlement flows were rebuilt as event-driven services on AWS, with immutable audit trails and progressive, reversible releases.
The results
End-to-end settlement time fell by 70%, audit preparation dropped from weeks to a few hours, and the platform shipped continuously with zero audit findings across two regulatory cycles.
Technologies
“Aayulogic’s team felt like our own engineers — but with deep platform expertise we did not have. They modernized our most critical system without ever putting an audit at risk.”
AI Summary
Nordvik Bank’s batch-based settlement core could not keep up with growth and made audits painful. An augmented Aayulogic pod incrementally replaced it with an event-driven platform on AWS, using immutable audit trails and progressive delivery. Settlement time dropped 70%, audit prep went from weeks to hours, and the bank retained the team through a Build-Operate-Transfer hand-over.
Key Takeaways
- Incremental strangler-fig migration avoided a risky big-bang cutover.
- Event-driven settlement cut end-to-end settlement time by 70%.
- Immutable audit trails reduced audit preparation from weeks to hours.
- The pod transferred to Nordvik via a BOT hand-over, retaining all engineers.
Nordvik Bank reached the limits of a settlement core built for a smaller institution. This is how an augmented Aayulogic pod modernized it incrementally — and handed the team back to Nordvik through a Build-Operate-Transfer arrangement.
A migration without a cutover
Rather than a risky big-bang replacement, we placed a facade in front of the legacy core and moved settlement flows to new event-driven services one slice at a time. Each slice shipped behind feature flags, so traffic shifted gradually and any change was reversible in seconds.
The outcome
Within eleven months the legacy core was fully retired. Settlement that once waited for overnight batches now completes in near real time, and auditors can reconstruct any transaction instantly from immutable event logs. The pod then transferred to Nordvik’s own entity with every engineer retained.