Senior SAP HCM Solution & Integration Architect - Freelance

📅 Start: Mid-November 2026 | ⏳ Dauer: nach Absprache | 🕐 Auslastung: nach Absprache | 📍 Einsatzort: Bonn, Germany (Remote)

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.

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

• Carve-out or transition experience