Experienced Full-Stack Developer — AI-Integrated SaaS Web App

Summary We are building a multi-screen SaaS web application where AI is central to the product — not an add-on. The platform includes a structured onboarding experience, personalized dashboard, AI-generated document outputs, a real-time conversation interface, and a full user profile and auth system. The product is designed for a non-technical consumer audience and must be polished and production-ready. A complete Figma design will be shared with the selected developer. We are currently at the quoting stage. Skills required (production experience, not just familiarity): Next.js / TypeScript, Supabase (Postgres), LLM API integration (Claude or GPT-4), prompt engineering, streaming chat UI (SSE/WebSocket), user authentication flows, Figma-to-code implementation, Tailwind CSS, Vercel deployment. Important: Do not apply if your AI experience is limited to chatbots or basic API calls. This project requires structured AI workflows where outputs are personalized from user data. Strong applicants have shipped at least one SaaS product with meaningful LLM integration — please describe it in your proposal. Estimated effort: 250–345 hours total across all modules. To apply, please include: 1. A SaaS or AI product you have shipped (link or description) 2. Your specific experience with LLM APIs in production 3. Your hourly rate or estimated fixed-price range for a 250–345 hour project 4. Your availability and timeline Start your proposal with the words: "I've built AI products." Proposals that do not include this will not be reviewed.