Lead legacy data conversion and system transition. Analyze historical and current data systems, document structures and constraints, develop source-to-target mapping requirements and data dictionaries, collaborate with technical teams on migration sequencing and transformation logic, participate in conversion execution, resolve data exceptions, maintain governance documentation. Deliverables include Legacy Data Assessment Report, Source-to-Target Data Mapping Workbook, Business Rules Inventory & Data Dictionary, Conversion Test Plan and Reconciliation Reports. Must work PST hours.