Core Banking Upgrade + Migration (1M+ records)

Upgrade delivery with a migration operating model that reduced go-live risk.

Problem

Migrations were slow, inconsistent, and relied on heroics. Risk approvals were late and documentation was fragmented.

Solution

I introduced a repeatable program approach:

• Wave planning: group workloads by risk, complexity, and dependency profiles.
• Definition of done: formal acceptance checks that engineering and risk both sign off.
• Metrics: lead time, rollback frequency, incident rate, and adoption milestones.

Impact

The team moved faster with fewer surprises because the process made risk visible early.