Senior SAP ABAP Developer (S/4HANA & SAP Integration Suite)

Unison Group

Singapore, Singapore, Singapore permanent

Posted: February 27, 2026

Required Skills

Job Description

Job Summary

We are seeking a highly experienced Senior SAP ABAP Developer with strong expertise in SAP S/4HANA, ABAP RAP, and SAP Integration Suite. The ideal candidate will have a solid background in RICEFW development, integration architecture, and API management, along with the ability to work collaboratively in an Agile environment.

MUST HAVE Skills

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• Minimum 7+ years of experience as an SAP Developer.
• Strong hands-on experience in SAP ABAP programming, including:
• Classical ABAP
• Object-Oriented ABAP
• ALV Report Development

• Proficiency in SAP enhancement frameworks:
• User Exits
• BADIs
• BAPIs

• Proficiency in ABAP RAP (RESTful Application Programming Model).
• Solid knowledge of SAP S/4HANA, CDS Views, and HANA-based development.
• Experience developing custom iFlows in SAP Integration Suite to integrate SAP S/4HANA with Non-SAP applications.
• Strong debugging, troubleshooting, and performance optimization skills.
• Excellent written and verbal communication skills.
• Strong interpersonal skills to interact with diverse stakeholders.
• Agile mindset, fast learner, adaptable to change.
• Strong analytical skills with a passion for solving complex problems.
• Good team player with a collaborative approach.

GOOD to Have Skillsets

• Good understanding of:
• LSMW
• Smart Forms
• Adobe Forms
• SAPscript
• Unix Scripts

• Experience in SAP Fiori/UI5 development, Gateway, and OData technologies.
• Knowledge of SAP Workflow, IDocs, and ALE.
• Exposure to DevOps practices, version control (Git), and CI/CD pipelines for SAP development.
• Functional exposure to SAP modules such as:
• Treasury
• MM
• GL
• BPC

Key Responsibilities

• Design, develop, test, and implement custom SAP ABAP programs, reports, interfaces, enhancements, and forms.
• Work on all types of RICEFW development, including enhancements to standard SAP processes.
• Develop and optimize SAP reports, Smart Forms, Adobe Forms, and ALV reports.
• Implement SAP enhancements using User Exits, BADIs, and BAPIs.
• Debug, troubleshoot, and optimize existing ABAP and Fiori/UI5 code.
• Develop interfaces using File, RFC, IDoc, BAPI, Web Services, and Proxy-based integrations.
• Identify, analyze, and develop integration flows using SAP BTP Integration Suite and API Management.
• Prototype, develop, test, deploy, and maintain APIs in SAP API Management.
• Create OpenAPI specifications and schemas for GET, POST, DELETE, and other HTTP methods.
• Expose S/4HANA data and services over the Integration Suite for external connectivity.
• Follow SAP best practices in coding standards, documentation, and version control.
• Collaborate with functional teams to translate business requirements into scalable technical solutions.
• Develop and maintain SAP design and technical specification documents.
• Conduct unit testing, integration testing, and release testing to ensure quality and stability.

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