Job
In this role, you will design sustainable S/4HANA target architectures, evaluate migration scenarios, and conduct technical analyses. You will manage integrations and ensure a smooth transformation for customers.
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Job technologies
Your role in the team
- As a Technical Enterprise Architect at Westernacher, you are the strategic sparring partner for our clients in planning and implementing complex SAP S/4HANA transformations.
- They combine architectural excellence with a methodical approach and support decision-making processes at the management level.
- In close collaboration with business units, IT teams, and presales, you design sustainable, scalable target architectures and ensure a clear alignment of technology, processes, and organization.
- Design and definition of S/4HANA target architectures (On-Premises, Private Cloud, RISE with SAP) as well as derivation of clear migration and transformation roadmaps.
- Assessment and management of S/4HANA migration scenarios (Brownfield, Selective, Greenfield), including risk, effort, and decision analyses.
- Conducting system readiness analyses and technical prechecks using SAP standard tools (e.g., Readiness Check, Business Transformation Center, Maintenance Planner).
- Analysis of simplification items and derivation of concrete measures for processes, organization, and customizing.
- Responsibility for custom code management, including analysis, decommissioning, and refactoring in accordance with Clean-Core principles.
- Design and governance of integration and interface architectures (RFC, IDoc, APIs, OData, Webservices) in accordance with SAP ISA-M.
- Ensuring compatibility with third-party add-ons and legacy systems.
- Close collaboration with business units, IT, key users, as well as sales/presales.
- Preparation and presentation of decision templates, management briefings, as well as risk and impact analyses.
- Architectural input on governance, security, change management, testing, training, and post-go-live activities.
Our expectations of you
Qualifications
- In-depth expertise in SAP S/4HANA architecture, including data models, differences between ECC and S/4HANA, Fiori concepts, as well as end-to-end process understanding.
- Strong expertise in Custom Code and Integration Architecture, including ATC/SCI, APIs, interfaces, Clean-Core approach, and ISA-M.
- Proficient in relevant SAP tools and platforms for conversion and modernization (e.g., Readiness Check, SUM/DMO, Fiori, LeanIX, Signavio; SAP Cloud ALM/Solution Manager is a plus).
- Strong communication and stakeholder management skills at professional and managerial levels.
- Fluent in German and English, both written and spoken.
Experience
- Proven experience in S/4HANA transformations, including migration approaches, readiness assessments, pre-projects (e.g., CVI, Universal Journal, Material Ledger, Asset Accounting), and technical prerequisites.
- At least 5 years of experience in SAP projects, including at least one S/4HANA conversion, as well as deep expertise in at least two core processes.
Benefits
Work-Life-Integration
Topics you will work on
Job locations
About your employer
Our IT solutions are developed with the highest security standards for justice, government, church and notaries. Our IT products range from standardized industry solutions to tailor-made applications.
- Established Company
- Onsite, Hybrid
- Internet, IT, Telecommunication
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