Rakuten is seeking a Senior Backend Engineer for the R-Storefront team within its EC Marketplace Development Department. The role involves designing, developing, testing, deploying, and maintaining backend services that support Rakuten’s large-scale e-commerce storefront. Candidates are expected to have strong experience with backend development, preferably using Java or comparable technologies, along with knowledge of databases, APIs, distributed systems, and cloud or Linux environments. Experience leading technical discussions, improving system performance and reliability, reviewing code, and collaborating with product managers and engineers is valuable. Business-level Japanese or English may be required depending on team responsibilities. The successful candidate should be comfortable working in a fast-paced, international organization and taking ownership of complex technical challenges.
Rakuten Group, Inc. is a major Japanese technology and internet services company headquartered in Tokyo. Founded in 1997, it operates a broad ecosystem covering online marketplaces, fintech, mobile communications, travel, digital content, advertising, and professional sports. Rakuten’s e-commerce business connects millions of customers and merchants through services such as Rakuten Ichiba, making reliable and scalable software essential to its operations. The company has a strongly international workforce and promotes an English-oriented working environment in many technology and corporate teams. Engineers work on high-traffic platforms, cloud services, payment systems, recommendation technologies, and customer-facing digital products. Rakuten offers opportunities to work on large-scale systems while collaborating with colleagues from Japan and overseas. Its culture generally emphasizes innovation, ownership, customer value, and cross-business collaboration.
Japan offers strong opportunities for software engineers, particularly in Tokyo, Osaka, Fukuoka, and major technology companies such as Rakuten. Demand is steady for backend development, cloud computing, cybersecurity, data engineering, and mobile technologies. Japanese workplaces value punctuality, teamwork, respect, and careful attention to quality, although international companies often use English. Life in Japan is safe, organized, and supported by excellent rail transport, healthcare, restaurants, and cultural activities. Tokyo provides the widest career options but has high housing costs; regional cities can offer a calmer and more affordable lifestyle. Eligible technology professionals commonly use the Engineer/Specialist in Humanities/International Services visa, with the employer usually supporting sponsorship and paperwork. Highly skilled professionals may qualify for a points-based visa and faster permanent residency. Relocating employees should prepare documents, arrange housing, register locally, enroll in health insurance and pension, and learn basic Japanese for daily life.
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