Core banking modernization that keeps the ledger right.
Interest, fee, posting and settlement logic is the business. We upgrade, decompose and tune core banking and lending systems safely, with tests written before the change instead of after the incident.
What our core system modernization services deliver
Java and framework modernization
- Java upgrades that protect interest, fee and schedule calculations
- End-of-life library and app-server remediation
- Profiling: memory, threading, garbage collection, hot paths
- Static analysis and code-quality gates in the pipeline
Monolith to modular
- Origination, servicing and accounting split out of the monolith
- End-of-day batch and stored procedures moved behind APIs
- Strangler-pattern migration with no big-bang cutover
- Architecture and high-level design before any code moves
Database performance
- MySQL tuning for high-volume ledgers and reports
- Slow queries, execution plans and lock contention
- Partitioning and archival of transaction history
- Zero-downtime migrations, reconciled to source
Security hardening and safe refactoring
- Audit, VAPT and inspection findings remediated to closure
- OWASP Top 10 fixed in code; maker-checker and segregation of duties
- Characterization tests pinning calculations before any change
- AI-assisted recovery of undocumented business rules
Before we change a calculation, we pin its current behaviour with tests. Then we change it, and prove the ledger still balances.
Core modernization tools we work with
Related services and industries
Questions about core system modernization
How do you modernize a core system without breaking calculations?
We write characterization tests that pin today’s interest, fee, posting and schedule behaviour before changing anything, then migrate in small steps behind those tests and reconcile results against the old system.
Do you need a big-bang cutover?
No. We use the strangler pattern: new modules take over one capability at a time while the existing system keeps running, so each step is small and reversible.
Can you close our audit and VAPT findings?
Yes. We fix findings in code rather than in the report, add the controls that stop them coming back, and leave you with evidence for the next inspection.
Start with one real problem.
Tell us about the asset estate or system you are working on. A senior engineer will reply, not a sales team.