- Location
- Rakuten Crimson House, Japan
- Type
- Full-time
- Department
- Engineering
- Closing date
- Jun 24, 2026
- Source
- Workday
Description
Job Description:
Department Overview
Our team is responsible for the following products in both domestic and overseas markets:
- Internal business support systems for our e-commerce platform
- Analytics systems for merchant sales
- Performance estimation systems for new strategies
- Accounting management systems and billing data
Position:
Why We Hire
In the future, we will execute a project to migrate our current SAP ECC6.0 to SAP S/4HANA by the end of 2027. After the service goes live, we aim to achieve maintenance and operations through in-house resources. Therefore, we would like you to join from the development phase on the project to understand the specifications of the new system.
Position Details
We are looking for a skilled and experienced S/4HANA Basis Administrator to join our team. As an S/4HANA Basis Administrator, you will be responsible for the administration, maintenance, and support of our S/4HANA landscape, ensuring its stability, performance, security, and seamless integration with SAP Business Technology Platform (BTP) services. The ideal candidate will possess in-depth knowledge of S/4HANA architecture, SAP BTP, and cloud-based SAP administration, along with strong problem-solving and communication skills.
Responsibilities
- Manage S/4HANA system landscapes, including development, quality assurance, and production environments.
- Install, configure, and maintain S/4HANA systems and components, including Fiori Launchpad, embedded analytics, and other S/4HANA-specific functionalities.
- Apply SAP Support Packages, Feature Packs, and OSS notes to keep systems up-to-date and secure.
- Manage user administration, authorizations, and security roles within the S/4HANA environment.
- Perform system refreshes, copies, and migrations, including S/4HANA conversions.
- Configure and manage connectivity between S/4HANA and SAP BTP services, such as SAP Integration Suite, SAP Extension Suite, and SAP Analytics Cloud.
- Administer S/4HANA and SAP BTP environments deployed on cloud platforms.
- Monitor S/4HANA system performance and identify areas for improvement, including HANA database performance.
- Perform system tuning and optimization to enhance performance and stability.
- Participate in S/4HANA implementation, upgrade, and migration projects.
- Provide S/4HANA Basis expertise and support to project teams.
- Develop and maintain S/4HANA Basis documentation.
- Stay up to date on the latest S/4HANA Basis technologies, SAP BTP services, and cloud-based SAP administration best practices.
- Identify and implement opportunities to improve S/4HANA Basis processes and procedures.
Mandatory Qualifications:
- Experience in SAP S/4HANA implementation projects.
- Experience in ECC to S/4HANA migration projects.
- Experience with S/4HANA system installation, configuration, and maintenance.
- Strong technical knowledge of S/4HANA architecture, SAP NetWeaver, and HANA database administration.
- SAP S/4HANA System Administration certification.
- Excellent communication and interpersonal skills.
Desired Qualifications:
- Experience with SAP BTP integration and administration.
- Knowledge of ITIL framework.
- Hands on experience in activating DR site as part of DR drills etc.
Other Information:
Additional information on English Qualification
TOEIC Score 800 or above (or similar level of English ability or a University Degree earned in an English-speaking country).
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