Lead architecture design and technology selection in development projects, maximizing system quality and productivity.
About this role
LiNKX, an engineering-first firm (80%+ engineers, 25+ nationalities) with FinTech (core-banking/next-gen payments modernization) and PharmaTech (Lab Hub SaaS) businesses, is hiring a Middle Software Engineer for its growing FinTech team. Riding Japan's financial-DX tailwind, LiNKX supports clients from upstream (requirement definition, PoC) using cloud, mobile and generative AI, with agile development uncommon in Japanese finance. Missions: deliver modernization and new-development of mission-critical systems with high quality/efficiency; build a strong delivery team; and stably develop functional systems, databases and applications while applying security/data-protection best practices. Tasks: product-development support and in-house solution implementation, high-level API design and idiomatic code, testing/troubleshooting/debugging, and technical documentation. Stack: Java, Kotlin, JavaScript, TypeScript, Go, C#; Spring, Vue.js, Nuxt.js, .NET; AWS/GCP/Azure; projects use OAuth 2.0/OpenID Connect/FAPI, microservices, GKE. Required: 2+ years with one of Spring (Java/Kotlin), Vue/Nuxt/Quasar, Go, or C#/.NET; 3+ years as a software engineer; and business-level Japanese (N2+) for foreign nationals. Welcome: cloud experience, Git, new-product development, and conversational English. English reading/writing is common given the international team. Annual salary 5 to 10.5 million yen. Full-time, based in Tokyo (Akasaka).
This is an AI-generated summary of the employer's original posting — details can be incomplete, out of date or simply wrong. Always confirm everything on the official posting before applying.
Similar jobs
Lead the development and modernization of financial digital products, focusing on core banking systems and FinTech services.
Develop and maintain UI/UX design and web front-end for Vision AI products, focusing on high-quality React UI releases.
Develop tools for consumer game production, including launchers, data-entry utilities, Unreal Engine editor extensions, converters and checkers, while supporting middleware and OSS adoption.
Lead the product design team and manage the design process from concept to execution, focusing on user experience and value delivery.
Leads company-wide IT strategy, security, infrastructure, DX and AI adoption; manages projects, vendors, office and lab systems, and the IT team for a fusion-energy startup.