Full-Stack Developer Needed for AI-Powered SaaS Platform Improvements

We're looking for a senior full-stack developer to improve an existing AI-powered SaaS platform for healthcare/operations. The platform is already live, but we need focused improvements on the backend and AI workflows. Scope: - Review current React / Next.js frontend and Python/FastAPI backend - Improve existing AI integration (OpenAI API, RAG, document processing) - Work with role-based dashboards, user permissions, and data workflows - Fix bugs and optimize performance - Keep code clean, documented, and easy to maintain Relevant skills: React, Next.js, Python, FastAPI, Django, .NET, Node.js, TypeScript, JavaScript, AI integration, OpenAI API, SaaS, ERP, healthcare IT, HIPAA, multi-tenant, REST API, PostgreSQL, AWS, Stripe, role-based access, admin dashboard, full-stack development. Please send examples of similar SaaS, healthcare, AI-powered, or full-stack platforms you've worked on.