Zero-downtime migrations of legacy core banking and insurance platforms serving millions of customers.
The Challenge
“Your core system is 15+ years old. Every critical business process depends on it. A single hour of downtime costs €250,000 in lost transactions. The vendor wants you upgraded, but your last migration attempt failed after 18 months and €4M.”
Our Approach
Complete dependency mapping across all integrated systems before any code is touched
Parallel running strategy — old and new systems operate simultaneously for 30+ days with automated reconciliation
Zero-downtime cutover executed during off-peak windows with rehearsed rollback procedures
Hypercare support for critical first 90 days post-migration with 24/7 war room capability
Result
€0
downtime during infrastructure expansion
Major Irish retail bank — €2.4B daily transaction volume migrated with zero customer impact. 99.99% availability maintained throughout 6-month transition.
Client details available under NDA for qualified prospects.
Initial consultations are confidential and without obligation.