I’m Demétrio Murbach Junior, a Software Engineer building full-stack products for operationally complex environments: ERP and CRM modules, integrations, internal tools, and the workflows around them.
My strongest technical foundation is C#/.NET. I also deliver production work with TypeScript, Node.js, React, SQL, and API integrations. I care about software that is maintainable, understandable, and useful to the people who rely on it.
I use AI as an engineering capability—not a substitute for judgment.
I work with prompt design, context engineering, AI agents, MCP-based integrations, and human-guided implementation workflows. The goal is to give agents the context, constraints, architecture, and validation signals required to speed up delivery while preserving quality and technical ownership.
- Agent loops and orchestration
- Harness design for reliable agent execution
- Safety-constrained AI code generation
- Reusable context systems for software delivery
- Backend & APIs: C#, .NET, ASP.NET, Node.js, Express, REST APIs
- Frontend: TypeScript, JavaScript, React, Material UI
- Data: MySQL, PostgreSQL, SQL Server, MongoDB, Redis, Firebird, Prisma
- Quality & delivery: Git, GitHub Actions, CI/CD, Docker, Playwright, Puppeteer, automated testing
- Architecture: Clean Architecture, DDD, Dependency Injection, modular refactoring, performance-oriented problem solving