Looking for an AI App Developer to Build Our SaaS MVP Using Lovable, Bolt.new, or Replit

We're a startup looking for an experienced developer to help us build the first version of our AI-powered SaaS platform. We've already validated the idea and have wireframes ready. Now we need someone who can quickly turn it into a production-ready application, not just a prototype. The ideal freelancer should have experience building applications with Lovable, Bolt.new, V0, or Replit while also understanding backend development, databases, authentication, and API integrations. Requirements Build a responsive web application Develop a secure backend Connect APIs User authentication Database setup (Supabase or Firebase preferred) Stripe payment integration Deploy the application Preferred Skills React Next.js Node.js Supabase Firebase PostgreSQL OpenAI API Vercel Please include examples of SaaS or AI applications you've built.