This is a fixed-scope engagement, not an open-ended retainer. We align on core features in week 1, I build in weeks 2–4, and week 5 is deployment, polish, and handover. The stack is React or Next.js on the frontend, .NET Core or Node.js on the backend, PostgreSQL, deployed on AWS or Azure with a proper CI/CD pipeline. If your MVP needs an AI feature, I can include a chatbot, semantic search, or LLM integration as part of the scope.