東京

Lead Frontend Engineer — Digital Bank — Tokyo

Tokyo
Partial Remote
Full-time
July 23, 2026

About Abbeal

Abbeal is an international IT consulting firm (France, Japan, Canada) placing senior engineers on high-impact product teams. Through Abbeal, lead the customer-facing web application of a from-scratch digital bank in Tokyo.

Context

You will own the customer-facing web app of a greenfield digital bank in Tokyo — a joint venture between a leading Japanese FinTech and a major banking group. Greenfield React + TypeScript architecture, with a strong functional-programming and type-driven engineering culture. International, English-friendly team; Japanese is not required.

Your Mission

Own the architecture and delivery of the customer-facing web application
Build a greenfield React + TypeScript codebase with a strong type-driven, functional approach (Effect-TS)
Design robust integrations against REST / OpenAPI banking APIs
Set frontend standards (testing, CI/CD, performance) and scale the frontend as the product grows
Mentor and grow the frontend team

Profile

8+ years in frontend engineering, expert in React + TypeScript
Strong functional-programming and type-driven mindset (Effect-TS or similar a strong plus)
Experience with TanStack, REST / OpenAPI integrations, and large-scale SPA architecture
Fintech or regulated-product experience a plus
Fluent English; Japanese not required

Location and Setup

Tokyo — hybrid. Permanent or contract options depending on profile. Hired and supported by Abbeal (visa sponsorship + Mobbeal expat support). Indicative range ¥9M–¥15M/year depending on experience.

APPLY NOW ➜

About abbeal

Abbeal, founded in 2015, is a tri-hub senior engineering studio based in Paris, Montréal, and Tokyo with more than 100 senior engineers across Software, AI, Data, and Robotics.

Through a Follow-the-Sun delivery model, Abbeal supports global clients around the clock while offering three core engagement modes: embedded senior squads, technical recruitment, and turnkey delivery through Abbeal Studio.

A major part of Abbeal's international culture is Mobbeal, a global mobility program designed to relocate engineers between hubs. The program has already supported more than 50 relocations with a 100% visa success rate, making it especially attractive for English-speaking engineers interested in building a career in Tokyo while gaining international experience.

Abbeal has worked on critical technology projects for organizations including BNP Paribas, AXA, Paypay, Money Forward, Hydro-Québec, and Le Monde.