Full Stack Engineer

🚀 Senior Software Engineer | FinTech | ¥9M–¥12M | Tokyo / Hybrid I’m currently hiring a Senior Software Engineer for my client, a technology-driven company working on the modernization of financial systems and next-generation payment platforms in Japan. This is a great opportunity for an experienced engineer who wants real technical ownership, rather than simply implementing predefined requirements. 💡 What makes this role interesting?: 🔹 High technical autonomyYou’ll lead architecture design, technology selection, and key technical decisions across complex systems.🔹 Modern FinTech projectsWork on large-scale financial platforms using technologies such as cloud-native infrastructure, microservices, event-driven architecture, and GenAI.🔹 Upstream involvementThe team is often involved from the early stages of projects, including requirements definition, PoCs and MVPs — giving engineers the opportunity to influence both the technology and the solution.🔹 Global engineering environment 🌎The company has engineers from 25+ countries, creating a genuinely multicultural development environment.🔹 Agile development Unlike many traditional financial projects in Japan, the team works with Agile methodologies such as Scrum and Kanban, with engineers involved throughout the development lifecycle. 🛠 Tech stackDepending on the project, you may work with:• Java / Kotlin / Spring• Go• C# / .NET / ASP.NET• Vue.js / Nuxt.js / Quasar• TypeScript / JavaScript• AWS / GCP / Azure• Terraform / OpenTofu• Kubernetes & microservices 👤 What we're looking for: We're looking for someone with:✅ 7+ years of software engineering experience✅ Experience as a Senior Engineer / Tech Lead, including leading a team of 3+ engineers✅ Strong experience across 2+ of the following: Spring, Vue/Nuxt/Quasar, Go, C#/.NET✅ Cloud architecture experience with AWS, GCP or Azure✅ Experience with modern architectures such as microservices, distributed systems or event-driven architecture✅ Professional English communication skills, Japanese is not mandatory for Senior Fullstack EngineersExperience in FinTech, enterprise-scale systems, consulting/upstream development, high-security environments, or PoC/MVP development is a strong plus. 💰 Package💴 ¥9M–¥12M annual salary (could be more depending on candidates experience)🏠 Flexible work style — once a week in office minimum⏰ Flextime with no core hours📍 Tokyo🌎 International / multicultural engineering environment 📈 Career opportunities: Depending on your interests, there are opportunities to grow toward roles such as:Tech Lead | Engineering Manager | Principal / Specialist If you're a senior engineer who wants to have a genuine impact on architecture, technical strategy and the modernization of financial infrastructure in Japan, please apply to this role.