Backend Engineer

We’re looking for a Backend Engineer to join a growing product engineering team at a leading digital platform in Japan. Our platform serves millions of users and processes massive amounts of data daily, making scalability, reliability, and clean architecture central to everything we do. This is a chance to work end-to-end on systems that truly matter — where your code directly impacts the performance and experience of a nationwide audience. You’ll join a team that builds everything in-house, values autonomy and craftsmanship, and thrives on solving tough problems at scale. What You’ll DoDesign, develop, and optimize backend systems using Java or GoOwn features from architecture to deployment — and everything in betweenEnhance performance, reliability, and maintainability in high-load environmentsPartner with cross-functional teams to deliver impactful product improvementsContribute to architecture decisions, tech evaluations, and long-term planningWhat We’re Looking For3–5+ years of backend development experienceProficiency in Java or Go (either is welcome)Solid knowledge of relational and NoSQL databasesStrong engineering fundamentals and an agile, collaborative mindsetBonus: experience with microservices, Spring/JPA, gRPC/GraphQL, DDD, or DevOpsWhy Join UsRemote-first culture with flexible hours and locationBuild technology at massive scale — millions of users rely on our platformA stable, well-funded environment with the pace and energy of a startupTrue ownership: your technical decisions will shape our architecture and product directionWork with a smart, motivated team that values continuous improvement and learningIf you’re passionate about backend engineering and want your work to make a visible impact, we’d love to hear from you.