Java Software Engineer, Shipping Calculation Platform Group - EC Logistics Development Department (ECLD)

Role summary

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Rakuten is seeking a Java Software Engineer for its Shipping Calculation Platform within the EC Logistics Development Department. The role involves designing, developing, testing, and maintaining reliable services that calculate shipping options and costs for e-commerce operations. Candidates are generally expected to have professional Java development experience, knowledge of object-oriented design, databases, APIs, and software development processes. Experience with Spring, cloud environments, microservices, distributed systems, or logistics platforms is advantageous. The successful candidate should be comfortable working in English and Japanese multicultural teams, communicating clearly with product and engineering stakeholders, and taking ownership of production-quality systems. Strong problem-solving skills, attention to detail, and a willingness to improve platform performance and scalability are important.

About the employer

Rakuten Group, Inc. is a major Japanese technology and internet-services company headquartered in Tokyo. Founded in 1997, it operates a broad ecosystem covering e-commerce, fintech, mobile communications, digital content, travel, advertising, and logistics. Its online marketplace connects customers and merchants, while Rakuten’s membership and loyalty programs link services across the group. The company has an international workforce and promotes a global working environment, with English widely used in many corporate and engineering teams. Rakuten invests heavily in technology, including cloud platforms, data, artificial intelligence, mobile networks, and logistics infrastructure. Employees typically work on services used by large customer and merchant communities, offering opportunities to develop systems at significant scale. Benefits and working arrangements vary by position, department, and employment contract.