FinTechBanking
Core banking migration for a mid size bank
Moved 1.2M customers to a new core with zero downtime
A project by Maya Chen
Role
Program Manager
Client
Confidential
Timeline
Jan 2024 - Mar 2025
Team
42 people
Budget
EUR 8M
On time
Go-live
99.98%
Data accuracy
-4% under
Budget
01
The challenge
Legacy core at end of support, 1.2M customers, regulator deadline in 14 months.
02
My approach
Set up a 3 track plan (data, product, people), weekly risk reviews and 3 cutover rehearsals.
03
Lessons learned
Book business SMEs for UAT on day one. Rehearse rollback, not only go-live.
How the work was structured
From jira1 initiative2 epics2 storys1 task
50% done
CBM-1Core banking migration1/2
CBM-2Data migration1/2
CBM-3Customer data load
CBM-4Payments reconciliation
CBM-5Cutover0/1
CBM-6Rollback rehearsal