Senior SAP HCM Solution & Integration Architect - Freelance

For an international enterprise environment, we are looking for an experienced Senior HR IT / SAP HCM Solution & Integration Architect to support a global HR technology transformation and transition program. The role combines HR application architecture, integration architecture, technical governance and hands-on SAP HCM expertise . This is not a classic Payroll role and not a purely functional SAP HCM consulting position. Start: Mid-November 2026 Duration: 6 months+ Go-live: Planned for January / February 2027 Contract: Freelance Workload: 100% Location: Remote Language: English We are specifically looking for a technically strong SAP HCM Solution / Integration Architect . Profiles focused primarily on SAP Payroll, SuccessFactors Payroll or purely functional SAP HCM consulting without architecture and integration responsibility are not suitable for this assignment. Tasks Design and further develop the global HR application and integration architecture Act as technical lead and design authority for the implementation team Design and review integrations between SAP HCM, S/4HANA, SuccessFactors and other enterprise systems Work with SAP Integration Suite / CPI, APIs, OData, REST, SOAP and middleware technologies Define architecture principles, technical standards, data flows and integration governance Support security architecture, IAM, RBAC, segregation of duties and GDPR requirements Support audit findings, test cycles, technical issue resolution and go-live preparation Take over from the current consultant and support go-live, stabilization and ongoing technical ownership Requirements Extensive experience in HR IT, SAP HCM, Solution Architecture or Enterprise Architecture Strong SAP HCM background, ideally including Core HR, Personnel Administration and Organizational Management Strong experience in Solution Architecture and Integration Architecture Experience with SAP S/4HANA and/or SAP SuccessFactors Strong integration experience with SAP Integration Suite / CPI, APIs and middleware Strong technical understanding beyond purely functional SAP HCM consulting Experience with global / multi-country landscapes, security, IAM, roles and GDPR Fluent English, strong stakeholder communication and experience leading technical teams Nice-to-haves Business Object Repository SAP Shared Memory Carve-out or transition experience Global SAP transformation programs Application Operations Post-go-live stabilization / hypercare Experience in international corporate environments