Situation
An Irish retail bank needed to expand the infrastructure beneath its core services. The business would not accept the outage a conventional maintenance window would require.
Challenge
Every change had to be made while customer-facing services stayed live. A failed step could not be allowed to become a customer-visible incident, so the way back had to remain available at every stage — not only at the start.
Intervention
- Staged the migration into increments that could each be verified and, if necessary, reversed.
- Reconciled continuously during the move rather than once at the end.
- Kept a viable rollback path open at every step, and rehearsed it.
- Coordinated the change through the bank’s existing change and operational governance.
Outcome
The migration was completed during live trading with no customer-facing impact.
Case studies describe work led by Conjora specialists, including in roles held before or alongside Conjora. They are not presented as the delivery record of Conjora Limited. Clients are not named, and details that could identify them have been removed.
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