Senior SAP ABAP Developer (ECC to S/4HANA Transformation)

About the Position 

Join ZEISS during one of the largest SAP transformation programs in our environment. You will contribute to the transition from a long-established SAP ECC landscape towards SAP S/4HANA using a brownfield transformation approach. Your work will focus on technical modernization, custom code adaptation, integration topics, system enhancements, and preparing the landscape for future innovations. This is a pragmatic, hands-on role: alongside transformation work, a meaningful part of the position involves daily support, maintenance, documentation, recurring administrative activities, and the reliable execution of routine technical tasks. 

​Your Responsibilities 

• Development, enhancement, and support of SAP solutions within SAP ECC and SAP S/4HANA environments. 

• Analyze, adapt, and optimize custom developments during and after the ECC to S/4HANA transformation journey. 

• Design and implement sustainable technical solutions aligned with ZEISS architecture standards. 

• Support global rollout and transformation activities across ZEISS locations. 

• Ensure system integrity, compliance, and documentation throughout the application lifecycle. 

• Collaborate with business process experts, SAP consultants, and international development teams. 

• Contribute to modernization initiatives using current SAP technologies where they provide business value. 

• Mentor and support team members in technical topics and development best practices. 

• Member of our European Corporate IT SAP Team. 

Your Profile 

Must Have 

• 6+ years of professional SAP ABAP development experience. 

• Strong expertise in Classical ABAP and ABAP Objects. 

• Experience with Enhancements, BADIs, User Exits, Implicit/Explicit Enhancements, and SAP development frameworks. 

• Strong knowledge of interfaces and integration technologies such as RFC, IDoc, OData, SOAP, and REST-based services. 

• Experience with CDS Views and modern ABAP development concepts. 

• Experience in support, service delivery, and incident resolution. 

• Advanced English language skills. 

• German language skills at minimum B2 level. 

Highly Desirable 

• Experience in SAP S/4HANA transformation, brownfield migration, conversion, upgrade, or system transformation projects. 

• Experience with Fiori development and Fiori Elements. 

• Knowledge of SAP RAP (RESTful ABAP Programming Model). 

• Experience with custom code remediation and S/4HANA readiness activities. 

• Knowledge of Clean Core and SAP extensibility concepts. 

Nice to Have 

• Experience with SAP BTP and CAP. 

• Experience with Adobe Forms (online and offline). 

• Experience with Key User Extensibility and 3-Tier Extensibility concepts. 

• Understanding of ITIL processes. 

• Experience with project management methodologies. 

• Interest in emerging SAP technologies and continuous learning. 

What we offer   

Competitive compensation and a wide range of benefits, including:   

• 40-60% Hybrid Work Option   

• Continuous development with access to numerous training courses, including technical skills, soft skills and language skills   

• Dynamic and interdisciplinary team   

• Individual development perspectives and a challenging role with end-to-end responsibility   

• Ability to directly deliver solutions into real, innovative products   

Your ZEISS Recruiting Team: