Stronger engineering teams. Software that ships.

Drawing on experience leading engineering organisations at some of Japan's largest tech companies, and helping tech startups get off the ground, we support technical strategy, team design, and delivery.

Where we've worked and advised

How we help

Moving engineering forward: technology, teams, and AI.

Technical strategy and architecture

Technology selection, system design, and legacy modernisation — clarified to support real decisions.

Building engineering teams

Team structure, hiring, mentoring, and development process. Including setting up distributed teams.

Putting AI to work

Adopting AI tooling across your engineering workflow, and designing and building LLM-backed features — including how they are evaluated and run.

Our Work

Results across industries.

4.8M+

Monthly active users

Marketplace · Web and mobile

Modernised the website with React, Next.js and GraphQL, and rewrote the mobile apps from scratch in React Native.

+25%

Engineering org growth

Mobility · Organisation design

Restructured and grew the engineering organisation building in-vehicle software for a major automaker, and modernised its development practices.

3 sites

Distributed teams led

E-commerce · Platform engineering

Led development teams across three continents, migrating a legacy platform to Docker and Kubernetes.

0 → 1

Early-stage engineering advisory

Startups · Advisory

Advising early-stage Japanese startups on architecture, hiring, and building an engineering practice from the ground up.

AI agents

Documents into interactive video

SaaS · AI content platform

Ongoing engineering work on an AI platform that turns sales and training material into interactive video agents viewers can question in real time.

Cross-platform

Shopping app design and build

Consumer review platform · Mobile commerce

Led design and development of a React Native e-commerce app for a consumer review platform, from concept through to a shipped product.

Company

About Fortyone Agency

25+ years in software

Engineering leadership roles at leading Japanese tech and mobility companies, building and running development organisations.

Boardroom and shop floor

Involved from organisation design through to implementation, connecting decisions to what teams actually ship.

Sharing what we learn

We advise Japanese technology startups, sharing what we have learned about building engineering teams.

Company: Fortyone Agency LLC
Founded: July 1, 2024
Capital: ¥1,000,000
Address: Shibuya Dogenzaka Tokyu Building 2F-C
Dogenzaka 1-10-8, Shibuya-ku, Tokyo 150-0043, Japan

Contact