Lead Software Engineer, Rakuten Ichiba - EC Marketplace Development Department (Osaka Branch) (ECMPD)

Role summary

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Rakuten is seeking a Lead Software Engineer to help develop and enhance Rakuten Ichiba, its large-scale e-commerce marketplace, from the Osaka branch. The role requires strong professional experience in software development, system design, and leading engineering work, with solid knowledge of programming, databases, APIs, testing, and software development practices. Experience with high-traffic or large-scale web services, cloud technologies, agile development, and technical problem-solving is highly valued. The candidate is expected to guide developers, collaborate with product managers and other stakeholders, improve system quality and performance, and contribute to technical decisions. Strong communication skills and the ability to work effectively in an international, multicultural environment are also 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 that includes 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 services through its membership and loyalty ecosystem, including Rakuten Points. Rakuten employs a diverse, international workforce and promotes English as an important business language in many departments. Its engineering teams work on high-volume platforms, payment services, cloud infrastructure, mobile products, and data-driven technologies. The Osaka branch provides opportunities to work on major products while living outside Tokyo and collaborating with colleagues across Japan and overseas.