Design and build scalable infrastructure for the OneBank product, focusing on reliability and performance.
About this role
SmartBank is hiring a Server-side Engineer to build the systems that issue cards and enable payments for its B/43 (One Bank) product — API servers for the mobile app, a payment system connected to the Visa network, a card-issuing platform and an in-house KYC (identity-verification) system. The components are implemented in Go, Ruby and Python and run on AWS ECS/Fargate. Amid demand for new-product development, contactless-payment support and payment-message data collection/analysis, the role covers a wide range from mobile APIs to the Visa-network payment platform and deposit/withdrawal systems, participating end-to-end from problem discovery through design, implementation, testing, release and effect measurement. Example work includes designing/developing/operating iOS/Android API servers and Visa-network payment, clearing and settlement systems, and the in-house card platform. Full-time (seishain), based in Nishi-Gotanda, Shinagawa, Tokyo. The posting is written in Japanese.
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