Lead HR and payroll data migration and integration engagements across SAP SuccessFactors, Workday, and Oracle HCM. Define migration strategies, cleanse and transform legacy data, build and reconcile loads, design integrations, support testing and cutover, and establish monitoring and support processes. Communicate technical issues to HR and business stakeholders, contribute to proposals and reusable assets, and coach junior consultants. The role is remote in the UK with client-site travel as needed.