I’m supporting a 400+ person technology group in Japan that is rebuilding financial infrastructure for the AI era. The group operates across FinTech, securities, insurance, credit, Data & AI, and embedded finance, developing both financial infrastructure and consumer-facing products together with major enterprises.
Their platforms already power areas such as:
Digital wealth management and investment services
Securities infrastructure
Digital insurance platforms
Credit and embedded finance
Data and AI products
AI-powered financial advisory services
The company is now moving all major businesses toward an AI-native architecture. As Tech Lead, you’ll have real influence over how these platforms evolve.
You’ll work on:
Architecture and technical strategy for financial infrastructure
New platform and product development from the ground up
Technical evaluation and technology selection
Performance, scalability, security, and reliability
Cloud and infrastructure architecture
Technical leadership, design reviews, and mentoring
Introducing GenAI into production financial services
Why this role stands out:
Build infrastructure that sits behind real financial products
Work across multiple businesses instead of one isolated product
Strong ownership over architecture and engineering decisions
Complex technical challenges around scale, security, and reliability
Opportunity to build AI-native financial systems, not just add AI features
Flexible hybrid work and flexible working hours
Strong business foundation with multiple established financial businesses
Tech: Go / Python / TypeScript / React / Vue.js / AWS / GCP / Azure / Terraform / Docker / MySQL / Snowflake / OpenAI API ¥10M to ¥15M+ Tokyo / Flexible Hybrid Stock options available
Ideal for senior Backend, Platform, or Full-Stack Engineers who want to move into technical leadership while remaining deeply hands-on. DM me for the full JD and interview process.