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