Senior Backend Developer, Rakuten Ichiba - Mall Section No.2, EC Marketplace Development Department(ECMPD)

Role summary

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This role involves designing, developing, and maintaining backend services for Rakuten Ichiba, Japan’s large online marketplace. Candidates are expected to have several years of backend development experience, strong programming skills, and practical knowledge of databases, APIs, system architecture, testing, and performance improvement. Experience with Java, Spring, distributed systems, cloud platforms, or large-scale e-commerce services is likely to be valuable. The successful candidate should be able to take ownership of technical projects, collaborate with product managers and engineers, improve reliability and scalability, and contribute to design and code reviews. Clear communication, problem-solving ability, and comfort working in an international team are also important.

About the employer

Rakuten Group is a major Japanese technology and internet company headquartered in Tokyo. Founded in 1997, it operates a broad ecosystem covering e-commerce, online travel, digital content, fintech, mobile communications, advertising, and professional sports. Rakuten Ichiba is its flagship marketplace, connecting consumers with merchants across Japan and supporting a large volume of online transactions. The company is known for its membership ecosystem, which links services through Rakuten Points and a common customer platform. Rakuten employs people from many nationalities and uses English extensively in numerous corporate and engineering teams, although Japanese can be important for certain business interactions. Employees typically work in a fast-moving environment where software scalability, customer experience, data, and innovation are major priorities.