Co-creation, not contract work.
We are not a development company that simply builds what it is told.
We engage deeply with our clients' vision and challenges, think alongside them, and create together to produce lasting business value.
Feel free to Contact us with anything you would like to discuss.
Service
What we are good at
Project work
New business and MVP development
We work alongside you from the concept stage through MVP development and user validation.
Project work
Operational DX and process improvement
We optimize processes through on-the-ground interviews and build systems people actually want to use.
Project work
Web and mobile app development
We design and build web systems and apps with careful attention to UI and UX.
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CTO Partner Lab
CTO Partner Lab supports small and mid-sized companies with technical leadership and digital transformation. Through engineering resources and monthly mentoring, we accelerate the growth of your business.
Our own product
Build exactly the form you want,
with no backend development
Works
What we build
Open-Weight LLM × RAG System
Putting internal documents to work safely, and taking operational speed up a level
Work
2025.08.24
Saitama International Art Festival 2023
An arts festival held in Saitama City once every three years

Work
2023.06.30
Postn
Build exactly the form you want, with no backend development

Work
2023.06.12
Doctorbook global academy
A media site for learning medical techniques through video
Work
2023.03.07
Nagareyama Otakanomori: Town Building Born from Co-Creation
Video content telling the story of how a town was built
Work
2023.03.07
Run Crew
A running app for competing with friends
Work
2022.11.23
Otaka Machi Zukan
A web media site communicating sustainable town building

Work
2022.07.12
Virtual Talking Head
A cloud service that translates into foreign languages and generates spoken audio

Work
2022.07.12
hashi-coo
An e-commerce site proposing a new relationship between people, chopsticks, and nature

Work
2022.02.23
Julie
A wine e-commerce site with a personal sommelier to choose for you

Work
2022.01.27
Articles
Articles
From Firebase to Vercel, Contentful to microCMS — a migration log written with Claude Code
We moved our corporate site's hosting and CMS, and made it bilingual along the way. The constraints we only found by running against real data were more useful than the migration itself, so this post focuses on where we got stuck.
Can't Read POST Data with Firebase Functions × Remix?
How to read POST data from a Remix action when running on Firebase Functions.
Generative AI for Executives and Leaders: An Approach to Self-Driven DX
Building a structure where executives and leaders themselves can identify issues and evaluate solutions using generative AI. We introduce how combining this with our hands-on support dramatically improves both the quality and speed of digital transformation.
Deploying a Monorepo Next.js App (App Router) to AWS Amplify
Notes on the obstacles we hit while deploying a Next.js app managed in a monorepo to AWS Amplify.
Keeping Production Running Smoothly with Remote Work and Online Meetings [Documentation]
Many production companies have adopted remote work as a result of the pandemic, and we are one of them.
Designing an E-Commerce Site That Sells: How to Find Great Reference Examples
There is no single formula for e-commerce design that sells. Driving revenue requires a solid concept, and getting to that concept requires thorough research.
Productivity Tools We Recommend as a Production Company, Including Services That Work Well Solo
With remote work becoming the norm during the COVID-19 pandemic, our team now works from home most days of the week.
We Released Thought Recorder, a Figma Plugin for Keeping a Commit History of Your Designs
We hope this helps web designers who work in Figma. Read on for how to use it.
How to Build an E-Commerce Site, and Which Platforms We Recommend
Shopping online for fashion, appliances, and even groceries is now routine. With the pandemic accelerating the shift, we receive a steady stream of questions about which platform to use and how much it costs.
Generating FastAPI Schema Classes from OpenAPI
We chose FastAPI, a relatively modern framework, for a Python API project. FastAPI can generate an OpenAPI definition from your backend code, but here we do the opposite: generating FastAPI schema classes from an OpenAPI definition prepared in advance.
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Recruit
We are looking for people to build with
We are currently hiring for
・Backend engineer
・Frontend engineer
・Web engineering intern
Open positions
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