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Custom software

Custom software and business systems built and documented in Japanese.

From requirements to release and long-term support, our bilingual team builds the systems your business runs on, with specifications and reports in Japanese.

  • 30 JLPT-certified engineers
  • 20+ Japanese projects
  • Yokohama Japan office
Spec → Release Japanese documents
Specified and built in Japanese.

What we deliver

Business software, built to fit your operations

We build new systems, extend existing ones and keep them running, using the Microsoft .NET and cloud stack our teams have worked with for years.

  • Business systems

    Business and workflow systems

    Order, attendance, approval and reporting systems shaped around how your teams actually work.

  • .NET · APIs

    Enterprise applications and APIs

    Applications and integrations on Microsoft .NET, connected to the systems and data you already have.

  • Modernisation

    Upgrade and re-engineering

    Move ageing applications to current technology without losing the business rules inside them.

  • Quality · support

    Japanese QA, release and support

    Bilingual QA managers test before every release, and maintenance and support continue after go-live.

Japan collaboration model

A rhythm your team can plan around.

3 bilingual project managers and 2 bilingual QA managers keep the same routine on every Japanese project.

How we work
  • A daily team stand-up at 10:00 IST, with progress shared in Japanese
  • End-of-day status and progress reports
  • Detailed weekly reports in Japanese and English
  • UI/UX reviews aligned to Japanese design sensibility
  • Japanese QA sign-off before every release

Documents in Japanese

The document set that Japanese projects expect.

Each stage ends with a document your team can review, approve and keep. We write them in Japanese, with an English version whenever your team needs one.

  • 要件定義書

    Requirements definition

    What the system must do, agreed with your team before design begins.

  • 基本設計書 · 詳細設計書

    Basic and detailed design

    Screens, data and processing, from the overall structure down to each function.

  • テスト仕様書 · テスト結果報告書

    Test specifications and results

    Every test case is written down in advance, with the results reported against it.

  • 議事録 · 週次報告書 · 操作マニュアル

    Minutes, weekly reports and manuals

    We record decisions after each meeting, track progress every week, and create a user manual.

Delivered projects

Built for Japanese clients, in Japanese.

  • Web · Japan client

    Elnet — Newspaper Articles Management

    Article management on a .NET Core Web API.

    Read the project
  • Mobile · North American client

    Automated Electrical Design System

    Pinch-zoom blueprint storage with real-time sync.

    Read the project
  • Mobile · Japan client

    Aichimonshin — Patient Records System

    Dynamic health questionnaires on Android.

    Read the project
See all projects
Illustration of the Minato Mirai waterfront in Yokohama, with the Landmark Tower, Cosmo Clock 21 and the Bay Bridge

Japan office

Engineering in Chennai, with our partner in Yokohama.

Our partner Hermits Co., Ltd. in Yokohama is your first contact in Japanese.

Hermits Co., Ltd.
#107 Yoshimura Building, 1-13-10 Utsukushigaoka, Aoba
Yokohama, Kanagawa 225-0002, Japan

Technologies we learned for Japanese clients: kintone, Monaca, DataSpider, Azure Cognitive Services, PowerApps, Azure Logic Apps, Fluent UI, Grommet UI, OnSen UI and Xamarin / MAUI.

FAQ

Questions we hear first

What kinds of systems do you build?

Business systems such as order, attendance and approval workflows, customer portals, internal tools and integrations, for construction, healthcare, education, media, energy and engineering clients.

Which technologies do you use?

Mainly Microsoft .NET and SQL Server on Azure or AWS, with web and mobile front ends. We agree the stack with you, based on what you run today.

Can you maintain a system after launch?

Yes. Maintenance and support (保守・運用) can follow the project, with Japanese-language tickets and regular reports.

Request a callback

Talk to our bilingual team

Tell us what you need — development, support or documentation — and we’ll call you back in Japanese or English.

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Mon–Fri, 9:30–18:30 IST (13:00–22:00 JST)

Mon–Fri, 9:30–18:30 IST (13:00–22:00 JST)

Talk to us in Japanese or English

Preferred language

Required