LOCAL DEPLOYED ENGINEERSKAWAGOE, SAITAMA

Development fee: ¥0.When it works, we share in what we build.

We contribute engineering to ideas born in Kawagoe.

LDE is a project in which people who know the business and people who build software, all living in the same community, move forward together. Your idea does not need to be a polished proposal yet. Let’s start by meeting and talking.

Tell us your ideaSee how LDE works

We envision projects with people we can meet in person, primarily in Kawagoe, Saitama.

WHY NOW?

In the age of AI, important conversations should happen closer to home.

AI has dramatically changed how we work and how quickly software can take shape. At the same time, discussing what should be built remains just as important.

We want to create more opportunities in the community for people who know the business and people who understand software development to have serious conversations—and for those conversations to produce many new businesses.

WHY LDE

Because we are in the same place.

A Local Deployed Engineer turns the software development process into a place for meaningful discussion. Rather than waiting for a specification, we take responsibility from the earliest stage, when we begin exploring the business potential together.

  1. 01

    Meet and understand the work

    We learn how each other works and identify problems together.

  2. 02

    Build small and learn

    We start with something testable, then use what we learn to expand the idea further.

  3. 03

    Stay on the same side

    The relationship does not end at delivery. We aim to keep sharing what we learn along the way.

WHY ¥0

We do not sell engineering. We bring it to the project.

MODELHOUSE charges no development fee. Instead, we contribute engineering resources to the project.

If the business succeeds, we would discuss an appropriate compensation arrangement for each project, such as revenue sharing.

YOU BRING

Business expertise

Customers, ideas, industry knowledge, connections, and the drive to move the business forward.

WE BRING

Software development expertise

Software design, implementation, AI, security, and the drive to move the business forward.

WHAT WE BUILD

For example, tell us what is getting in your way.

Let’s turn solutions to everyday problems into new businesses that make society better.

  • 01A better way to get everyday work done
  • 02A service born from local experience in tourism, construction, education, or another field
  • 03A product that delivers entirely new value
  • 04An idea that has only become possible to test in the age of AI

You do not need a polished proposal. What matters is the desire to create a business.

LET’S GET STARTED

Let’s start with a conversation somewhere around Kawagoe.

  1. 01

    Tell us your idea

    It does not need to be fully formed.

  2. 02

    Explore the possibilities together

    We think about a small way to test it.

  3. 03

    Let’s do it together

    If we both want to move forward, we agree on our roles and a suitable way to share the outcome.

  4. 04

    Let’s make it a success

    Let’s move quickly toward success.

Keisuke "Roger" Yamamoto

FOUNDER OF LDE

An engineer who does not stay behind the screen.

Keisuke "Roger" Yamamoto

山本 "ロジャー" 啓介 / Executive Software Engineer

MODELHOUSE is a software development studio based in Kawagoe, Saitama. Its founder, Roger, has spent more than 20 years working between business and technology to develop products across organizations ranging from startups to large enterprises.

LDE brings that experience into the community. Rather than starting with technology, we begin by thinking things through together on site.

LET’S TALK

It does not have to be an “idea” yet.

Tell us about a frustration you notice in your daily work or something you wish existed. You do not need polished materials.

Tell us your idea

Start by sending us a short note through the form.

We also welcome inquiries beyond LDE, including standard software development and technical support requests.