株式会社SBK

AIDD × Harness Engineering

Smarter Development
with AIDD.

Centered on AIDD (AI-Driven Development) and Harness Engineering (agentic development), we cover web, mobile, and AI systems end-to-end. A full-stack engineer with 15+ years of experience puts AI agents to work for high quality at lower cost.

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Modern development environment

Values

Three Strengths

We support your project with AIDD, Harness Engineering, and domain expertise.

AIDD (AI-Driven Development)

Putting AI at the center of the development workflow, we rapidly prototype from requirements. AI-assisted reduction in man-hours lets us make the most of your budget.

Harness Engineering (Agentic Development)

An engineering style where humans and AI agents like Claude Code collaborate across coding, design, testing, and operations — delivering both speed and quality.

Domain Expertise

An engineer who passed the Japanese CPA exam and worked at an accounting firm delivers systems built on a deep understanding of accounting and bookkeeping logic.

Services

Services

We provide consistent support from requirements gathering to release.

Web & AI System Development

Centered on AIDD (AI-Driven Development) and Harness Engineering (agentic development), we build web applications with Next.js / React / PHP / Python and AI systems leveraging AWS Bedrock. We support every phase from requirements to release.

  • Development workflow powered by AIDD and Harness Engineering
  • Web app design & development (Next.js / React / Vue.js / PHP / Python)
  • AI system development (AWS Bedrock / Python / Streamlit)
  • API design & development (Node.js / Python / PHP)
  • End-to-end support from requirements to release

Mobile App Development

Cross-platform app development using Flutter and ReactNative. We build iOS/Android-compatible apps efficiently.

  • Cross-platform development with Flutter / ReactNative
  • iOS and Android compatible
  • Backend API integration & design
  • Modification and feature addition for existing apps

Accounting & Business Systems

An engineer with deep accounting knowledge designs and builds systems with a precise understanding of accounting workflows.

  • Automation and systematization of accounting / bookkeeping workflows
  • Streamlining data aggregation and reporting
  • Improvement and extension of existing business systems
  • Design grounded in deep accounting logic

DX Consulting & Requirements Definition

From clarifying IT and DX challenges to defining requirements, we think it through with you. Feel free to reach out even for small consultations.

  • Issue clarification toward IT adoption and DX promotion
  • Requirements definition and specification drafting
  • Small-scale PoC and prototype development
  • Evaluation and improvement proposals for existing systems
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Unique Expertise

An Engineer Who
Understands Accounting.

Our representative has passed the bookkeeping theory section of the Japanese CPA exam, has hands-on experience at an accounting firm, and has a track record building a consolidated accounting system for a listed corporate group. A deep understanding of both IT and accounting enables design that addresses the core of your business.

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FAQ

Frequently Asked Questions

What size projects do you handle?

We handle everything from small consultations and PoC (proof of concept) projects. Please feel free to reach out — we respond carefully regardless of scale.

What does specializing in accounting systems mean?

Our representative has passed the bookkeeping theory section of the Japanese CPA exam, has hands-on experience at an accounting firm, and has contributed to building a consolidated accounting system for a listed corporate group covering 100+ companies including overseas subsidiaries. This enables development grounded in deep accounting logic.

What does AI-leveraged development mean?

In addition to reducing man-hours through AI coding assistants like GitHub Copilot, we have a track record of building AI-powered systems (such as automated email classification) using AWS Bedrock. We are capable of not just using AI tools, but designing and developing systems that incorporate AI technology itself.

Can you handle mobile apps?

Yes. We support cross-platform development using Flutter and ReactNative, building iOS/Android-compatible apps efficiently.

Can you give a rough pricing estimate?

Pricing varies depending on the scale and content of the project. We'll listen to your requirements first and provide a quote. We accept small consultations, so please feel free to reach out.

Is remote work available?

Yes, we work fully remote as a rule. Our base is Sakai City, Osaka, but we handle projects nationwide across Japan.

Contact

Let's Talk.

No matter the scale, feel free to reach out. We'll listen to your needs and propose the best solution.

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