34.3403° N · 134.0433° E Based in Takamatsu, Kagawa
Est. 2026 · v0.1.0 Site manager × AI / DX engineer

NKFIELD bringing AI / DX to the field.

The site stays as it is. It just gets lighter.

Drawings, schedules, inspections — the site still runs on paper, Excel, and human memory. Someone who keeps standing on that site now takes up AI and DX. Not DX for show — tools that actually work, built by someone who knows the site's rhythm and its sweat.

Scroll
§ 00 · 01
Contents

Index 目次

  1. § 01 Ethos 理念 Two worlds in one name. Those who know the field are the ones who change it. P. 01 / 07
  2. § 02 About 経歴 New-build, management, renovation, DX — a 1st-class licensed engineer who walked every stage. P. 02 / 07
  3. § 03 Tools 道具 The real one is on the App Store. And toys, made with the same care. P. 03 / 07
  4. § 04 Vision 構想 The site stays as it is. It just gets lighter — four principles for that. P. 04 / 07
  5. § 05 Services 依頼 Where to bring a question about your site. Start by saying how the work runs. P. 05 / 07
  6. § 06 Follow 案内 One follow, and updates reach you. No email sign-up. P. 06 / 07
  7. § 07 Contact 連絡 On-site DX questions, work inquiries, or just to talk shop. P. 07 / 07
§ 01
Brand essence

Ethos 理念

NK-FIELD bridges two worlds. One is the Field — where site managers, tradespeople, and everyone in construction carry a project through tight schedules, weather, and nature itself. The other is Next Knowledge — where the site's real voices, data, and hard-won experience take shape through fast-evolving digital tools and AI. The knowledge and the skill to turn the field's real voice into working tools, fast — that is what lives here. 現場を知る者が、現場を変える。

Because I actually know the site, I can reach the spots that itch. Adding one drop of IT to the construction site so that everyone — from the youngest hand to the most seasoned — can work a little easier: that is the mission.

If "data entry to show the executives" only adds burden on-site, that is not real construction DX. The goal is always efficiency and less labor on the ground. Digital brought in for that reason then makes the site visible — and, in time, makes the numbers visible to management too. Never the other way around.

So I always start from the field's point of view. The site getting lighter — that, to me, is what construction DX truly means.

When the site gets lighter — that is real construction DX.
§ 02
The person behind it

About 経歴

I can say I know the field — because I have never left it. From new-build to management, renovation, and now DX: every stage of a building's life, walked in person. A licensed construction-management engineer, who codes.
Qualification 1st-class Construction Management Engineer 一級建築施工管理技士 — the highest national qualification for on-site construction management.
  1. 01
    New-build site management Where it began — as a site manager on new construction. Holding the drawings, the schedule, the quality, and the safety of the people on-site.
  2. 02
    Property management Moved to a property-management company. Facing owners and residents directly, and learning the view from outside the site: the client, and the business.
  3. 03
    Large-scale renovation On-site management of large-scale repair and renovation — the field of surveys, inspections, and corrections that keep buildings alive.
  4. 04
    Construction DX Bringing AI and digital into the work itself — developing and running the systems, in real operation, that make the site lighter.
New-build, management, renovation, and DX. Having walked every stage of the site, I can build tools the site can actually use.
§ 03
Field tools, and toys

Tools 道具

Field Tools — instruments for the site
FIG. 01 On the App Store · iOS

Renovation Survey

劣化調査アプリ

The real one. Property surveys, deterioration surveys, and inspections — all in a single app. Unified into drawings and a photo dossier: record on-site, review back at the office without friction, turn it into a report on the spot. Offline-first — it won't die out of range.

Bundle
jp.nkfield.renovationsurvey
Released
2026.08.23
Locales
EN · JA
Engine
Flutter · offline-first
App Store
Studio — play, taken seriously

The feel of a tap, the grain of a sound, the response under your finger — toy apps deserve full craft too. The senses sharpened here live on in the field tools. Enjoy the break.

§ 04
Four principles

Vision 構想

Software that works on-site is like a good craftsman. The site's knowledge and experience, gathered into the device in your hand — phone, tablet, PC. Sureness over flash; kind to the user, and reassuring to have close by. 現場のための、たしかな道具を。

The findings from an inspection or survey are still written by hand onto the drawings, then redrawn cleanly only after returning to the office. Correction orders and reports fly back and forth by phone, and on-site, checking and re-doing repeat again and again. Nobody is slacking — the honest handwork of serious people has simply hit its limit.

NK-FIELD changes that, bit by bit. Using digital tools to make on-site checks, paperwork, and record-keeping lighter and faster — moving work that has leaned on paper, Excel, and human memory into digital form, in the language of the field.

And now, remote management — knowing the situation without standing on-site — is beginning to be needed. We take that role, and its weight, head-on.

01
If it won't work on-site, I won't build it
Does that action add one more chore to a busy site? Does it stall where the signal doesn't reach? Can it be used with dirty hands, in spare moments? The desk doesn't decide. The site does.
02
AI is a tool, not magic
No buzzwords for their own sake. AI only matters when it removes one real on-site problem, for certain. The goal is not adoption — it's solving.
03
Not flashy DX — DX that works tomorrow morning
No revolution needed. The site starts five minutes sooner tomorrow morning. One less form. One less round-trip to confirm. That, stacked up, is what DX is worth.
04
Trust is built from the foundation up
Nothing costs a site more than rework — and software is no different. Unhurried, verified, on to the next step. Only on a course laid true can the next one rest.
§ 05
What you can commission

Services 依頼

If something on your site is not working, start by telling me about it. No need to have it worked out beforehand — describing how the work actually runs today is enough. A desk for questions from the field.
For instance, something like
  • The paper and Excel side of the site has to change, somehow
  • No idea which tool would actually fit
  • An app was rolled out, and nobody on-site uses it
  • Surveys and inspections eat the whole evening in write-up

This is a one-person practice, so there is a limit to what I can take on — and the shape of the work is decided case by case. Even so, do get in touch; we can find something that works.

Talk about your site → No sales pitch. Just tell me how it runs today.
§ 06
Updates, on note.

Follow 案内

§ 07
Correspondence

Contact 連絡

On-site DX questions, work inquiries, or just to talk shop.

* As a one-person practice, there are limits to what I can take on — but reach out anyway. We can find a shape that works.

note
note.com / nkfield ↗ the surest way to reach me
Email
nkfieldsupport@gmail.com replies may take a little time
Office
Independent practice · Japan
App Store
published apps ↗