SAP FI/CO Senior Application Specialist - Corporate IT Service Department

The Corporate IT Infrastructure Department (CITID) provides the stable and reliable technological foundation that supports Rakuten's global business operations.

We deliver simple, secure, and robust infrastructure services with operational and engineering excellence, managing core infrastructure, enterprise collaboration platforms, development support tools and project management.

The SAP Senior Application Specialist plays a critical role in the design, implementation, and continuous improvement of SAP solutions across business units.

This role requires deep expertise in SAP modules (e.g., S/4HANA FI/CO, AA, PS), strong business process understanding, and the ability to translate business requirements into scalable SAP solutions.

The specialist will collaborate with internal stakeholders, external partners, and global teams to ensure SAP systems support strategic goals and operational efficiency.

Lead the design, configuration, and deployment of SAP modules, particularly in areas such as Materials Finance(FI/CO), Asset Accounting(AA), and Project Management(PS).

Act as the subject matter expert (SME) for SAP application architecture and integration points.

Analyze business requirements and translate them into functional specifications and technical solutions.

Drive system enhancements, upgrades, and transformation initiatives (e.g., migration to S/4HANA).

Collaborate with cross-functional teams to ensure alignment between IT solutions and business processes.

Manage and resolve complex incidents, perform root cause analysis, and implement preventive measures.

Support audit and compliance activities, including documentation and system validation.

Mentor junior SAP analysts and provide training to end-users as needed.