Senior Backend Developer, Rakuten Ichiba - R-Backoffice Section, EC Marketplace Development Department (ECMPD)

Role summary

Written by MyIslandJob from the job title and employer. See the employer's page for the full description.

Rakuten Ichiba is seeking a Senior Backend Developer for the R-Backoffice team within its EC Marketplace Development Department. The role involves designing, developing, testing, improving, and maintaining backend services that support marketplace operations and internal business users. Candidates should have substantial experience with backend development, preferably using Java, Kotlin, or similar technologies, along with strong knowledge of databases, APIs, distributed systems, and cloud environments. Experience working on large-scale, high-traffic platforms and familiarity with agile development are valuable. The successful candidate is expected to take technical ownership, collaborate with product managers and engineers, improve system reliability and performance, mentor colleagues, and communicate effectively in a multicultural environment.

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 professional sports. Rakuten Ichiba is its flagship online marketplace, connecting consumers with merchants across Japan and internationally. The company is known for integrating different services through its membership and Rakuten Points programs. Rakuten employs a diverse, multinational workforce and commonly uses English alongside Japanese in many corporate and engineering teams. Its technology organization develops large-scale platforms, payment systems, data services, mobile networks, and tools supporting merchants and customers. Employees typically work in collaborative, fast-moving teams, with opportunities to contribute to products used by millions of people.