Software Engineer - E-money System Development Department, Rakuten Edy, Inc. (Secondment)

Role summary

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This role involves developing and maintaining e-money payment systems for Rakuten Edy, including requirements analysis, design, implementation, testing, release management, and ongoing improvement. Candidates are expected to have professional software development experience, knowledge of web or backend technologies, and the ability to work with databases, APIs, and system operations. Experience with Java, JavaScript, cloud platforms, payment services, or large-scale transaction systems is advantageous. Strong problem-solving, communication, teamwork, and a careful approach to security and reliability are important. As the position is based in Japan and involves secondment to Rakuten Edy, candidates should be comfortable working in a structured corporate environment and collaborating across teams.

About the employer

Rakuten is a major Japanese technology and internet services group founded in 1997. Its businesses span e-commerce, fintech, mobile communications, digital content, advertising, travel, and professional sports. The group operates a broad ecosystem in which customers can use services such as online shopping, banking, credit cards, mobile connectivity, and electronic payments. Rakuten Edy, Inc. operates the Rakuten Edy prepaid electronic money service, supporting cashless payments through cards, mobile devices, and participating merchants. Rakuten places strong emphasis on technology, data, innovation, and customer-oriented services. Employees typically work in international, cross-functional environments, although Japanese-language ability may be important for many domestic operations. The company offers opportunities to contribute to large-scale consumer platforms and financial technology products used across Japan.