Claude Custom App Developer Needed

I have chosen Claude as the core engine for a new application and now need hands-on expertise to turn the idea into a working, production-ready product. The focus is purely technical: writing code, wiring services together, and delivering a polished custom application that showcases Claude’s capabilities. Here’s the scope as I see it right now: • Architect and build a full-stack solution that calls Claude’s API efficiently and securely. • Handle prompt design, conversation state management, and any fine-tuning or system-prompt logic required for reliable outputs. • Implement user authentication, rate limiting, and logging so the app is safe to expose to real users. • Package everything for easy deployment (Docker or similar) with clear environment variable handling for Claude keys. • Provide concise developer documentation so future contributors can extend the codebase without guesswork. Acceptance criteria • End-to-end flow: a user query reaches Claude and the response returns in under two seconds on a modest cloud instance. • Source code builds from a clean clone with one command, passes lint/tests, and deploys. • README explains configuration, Claude quota usage, and update steps. I’m flexible on language and framework—TypeScript/Node, Python/FastAPI, or Go with Fiber are all fine as long as the final product is clean, idiomatic, and well-tested. Let me know which stack you prefer, show a similar Claude or GPT project if you have one, and outline the milestones you’d propose to hit the above goals.