Senior SAP ABAP/IS-U Developer for S/4HANA

HumanInTech; Brussel Hoofdstad; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Secure laptop

Job summary

HumanInTech is seeking a senior SAP backend developer to work on SAP IS-U for Utilities. You will own end-to-end changes, propose technical solutions, draft specs, and deliver ABAP-based implementations in a collaborative team.

The role emphasizes performance, security, and maintainability while ensuring alignment with architectural guidelines. The position requires strong ABAP OO and S/4HANA experience, English fluency, and a willingness to work on-site in Brussels.

Qualifications

• Proven 10+ years as SAP backend developer with S/4HANA experience.
• Strong ABAP OO and backend development skills using SAP standard extensions.
• Experience in SAP interface development, IDoc/ALE, BAPI/RFC, SOAP, OData.

Responsibilities

• Propose solutions from functional specs and estimate workload.
• Draft technical specs aligned with architecture; develop in ABAP.
• Ensure code quality, modularity, and ATC checks; document objects.
• Collaborate with SAP Basis on authorization and infrastructure.
• Execute unit tests, performance testing, and optimization.
• Prepare technical documentation for each object developed.
• Mentor juniors and help define development standards.

Skills

SAP backend development

S/4HANA development

ABAP OO

IDoc/ALE / BAPI / RFC

Web Services / OData

English

Education

Master's degree in IT / related field

IS-U specialization (desirable)

Tools

ABAP Workbench

ADT / Eclipse

ATC

BOR

LSMW / EMIGALL

CDS Views

Fiori

Job description

HumanInTech is seeking a senior SAP backend developer to work on SAP IS-U for Utilities. You will own end-to-end changes, propose technical solutions, draft specs, and deliver ABAP-based implementations in a collaborative team.

The role emphasizes performance, security, and maintainability while ensuring alignment with architectural guidelines. The position requires strong ABAP OO and S/4HANA experience, English fluency, and a willingness to work on-site in Brussels.