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.

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.

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

ZEISS is technology and innovation. Founded in Germany, in 1846, ZEISS is an internationally leading technology enterprise operating in the optics and optoelectronics industries across 50 countries.

As a company wholly owned by a foundation, ZEISS is committed to responsibility in all its activities. As a pioneer in scientific optics, it’s employees across the globe continue to push the boundaries of what is possible. With a strong focus on quality and innovation, ZEISS creates value for its customers and helps shape new ways of seeing the world.

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