" Job Summary
We are seeking an experienced Data Migration SME with deep domain knowledge
in Commercial Lending and hands-on expertise in the ACBS (Advanced
Commercial Banking System) platform to drive critical data migration initiatives for
the Mizuho Bank core platform rollout. The candidate will be responsible for end-to-
end migration runbook management, data mapping strategy, complex loan data
transformation validation, and leading technical cutover executions to ensure zero-
defect transitions and high operational continuity.
Key Responsibilities
- Data Migration & Technical SME Leadership
Serve as the primary Subject Matter Expert for migrating legacy loan
portfolios into the ACBS core lending platform during the Mizuho Bank
rollout.
Lead the definition, refinement, and execution of end-to-end data migration
strategies, transformation rules, and data reconciliation frameworks.
Deeply analyze legacy source schemas and target ACBS data structures to
resolve complex data mapping gaps, loan staging discrepancies, and
historical transaction alignment issues.
- Cutover & Runbook Management
Author, structure, and maintain detailed Cutover Runbooks, defining task
dependencies, minute-by-minute execution timelines, fallback procedures,
and validation checkpoints.
Lead Mock Migration Rehearsals and live Go-Live Cutover Window
operations, coordinating real-time execution across cross-functional teams
and bank stakeholders.
Manage risk mitigation logs during migration windows, ensuring rapid triage
and resolution of cutover defects or data transformation anomalies.
- Commercial Lending Domain Execution
Apply deep functional expertise in Commercial Lending
operations—including loan origination, facility/commitment structures,