Hirow
Hi there 👋 I'm Hiro (nhmatsumoto)
Software Engineer focused on building real-world products, AI-driven systems, and scalable software architecture.
I work mainly with .NET, TypeScript and modern web stacks, exploring autonomous agents and distributed systems as personal projects.
🚀 Featured Project: Ronaldinho Agent
Ronaldinho Agent is a personal R&D project focused on agent orchestration, tool execution and autonomous workflows.
The goal is to explore practical patterns for multi-agent systems, modular architectures and developer productivity.
- Agent Orchestration: multi-agent workflows, memory snapshots and tool pipelines
- Model Integration: model-agnostic approach (OpenAI, Gemini and others)
- Architecture Experiments: modular runtime, execution lanes, context persistence
- Developer Focus: designed as a playground for testing agentic patterns in real scenarios
🧠 Technical Focus
Backend
- .NET / ASP.NET Core
- REST, GraphQL
- EF Core, SQL Server, PostgreSQL
- Domain-driven and modular architectures
Frontend
- React + TypeScript
- Zustand
- TailwindCSS
- Responsive and product-oriented UI
AI / Agent Systems (personal exploration)
- Agent orchestration patterns
- Tool-based workflows
- LLM integrations
- Experimental multi-agent architecture
Dev & Architecture
- API design
- System design and solution architecture
- Automation and developer tooling
- Docker and local distributed environments
🧩 Selected Projects
Ronaldinho Agent
Agent orchestration playground focused on autonomy, modularity and developer productivity.
SplitCosts
Household finance management app focused on multi-tenant architecture, UX and performance.
SaaS Experiments
Concepts around workflow, attendance and business management platforms (ex: KintaiFlow).
🎯 What I Care About
- Building useful products, not only demos
- Architecture clarity and maintainability
- Performance and developer experience
- Applying AI pragmatically inside real software
📬 Reach me
- LinkedIn: https://www.linkedin.com/in/nhmatsumoto/
- GitHub: https://github.com/nhmatsumoto
Independent developer exploring architecture, SaaS and agent systems.