Working Inside Japan's Contract Engineering Services Model

A reflective analysis of how responsibility, incentives, team structure, and testing realities shape large development work in the Japanese-style contract engineering services model.

Early Architecture Attempts

Early personal development work, architecture experiments, and the operational challenges that eventually led to cloud deployment.

AI in Real Development Work

A practical reflection on how AI changed my daily work, why coding agents raise both productivity and risk, and why design matters even more now.

Real Problems I Encountered When Developing With AI Agents

A practical account of the real implementation and maintenance problems I ran into while using AI agents for internal business system development.

How AI Will Change Software Development Work

A personal reflection on how ChatGPT, Copilot, and AI coding agents changed my workflow and why they may also change the structure of software development teams.

Working Safely with AI Coding Agents

A practical reflection on how I use ChatGPT, Codex, and Copilot to design first, code second, and reduce the risk of AI-driven development.

Designing Software for AI Code Generation

AI coding agents are useful, but they work from narrow context rather than stable architectural intent. That makes software design and compact feature boundaries more important, not less.

Use Cases and Alignment in Solo Development

Solo development does not fail because of design alone. It fails when the shared understanding of what to build drifts. Use cases are the simplest and most effective tool to prevent that.

How I Work Solo Without Losing Reliability

I do not follow development methodologies rigidly. Some environments break them entirely. What actually moves projects forward is adapting to the real constraints in front of you, not applying theory.