Lead the design, development, and operation of the internal operation system supporting the circulation of used devices.
About this role
Belong, Inc. is an in-house startup of Itochu Corporation running the sale, buyback, and rental of used smartphones. This Frontend Engineer role centers on frontend development of Belong's flagship B2C service 'nicosuma buyback,' driving product growth. You currently focus on the buyback area, with future expansion to the sales site and B2B buyback/sales products — growing toward a full-stack engineer with a whole-product view, for those who want to feel the fun of accelerating business with technology. Stack includes React/TypeScript/Next.js. Full-time (seishain); Tokyo (Akasaka, Minato; relocation planned autumn 2026), 2–3 office days/week.
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