• Serve as Data Conversion Lead on Workday implementation projects, owning the full conversion lifecycle from strategy and planning through go-live cutover. • Develop and maintain comprehensive data conversion project plans, workbooks, and mapping documents that align legacy source data to Workday data structures across all in-scope modules. • Define data extraction, transformation, and load sequencing strategies in collaboration with client SMEs, functional consultants, and technical architects. • Lead iterative conversion testing cycles (Foundation, Configuration, End to End, Parallel, and Gold/Cutover loads), tracking defect logs and driving issues to resolution between cycles. • Support cutover planning by defining data freeze windows, load dependencies, and go-live readiness criteria in coordination with the project manager and client stakeholders. • Lead financial data conversion activities including General Ledger trial balances, open AP and AR transactions, supplier and customer master data, Fixed Assets, banking data, and chart of accounts mapping. • Build and execute EIB (Enterprise Interface Builder) templates, XSLT transformations, and Workday Studio integrations to load financial data accurately and on schedule. • Develop and execute reconciliation scripts and validation reports to confirm accuracy and completeness of converted financial data against source systems. • Partner with client finance teams to resolve data quality issues, mapping gaps, and transformation logic findings throughout the conversion lifecycle.