Leads large-scale HRMS modernization and implementation programs from planning through stabilization. Manages PMO governance, schedules, budgets, resources, risks, stakeholders, vendors, HR system integration, data migration, testing, go-live, change management, training, and adoption. Ensures alignment with business objectives, federal regulations, privacy requirements, FedRAMP, and cybersecurity standards while coordinating HR, payroll, IT, executives, and implementation partners.