Full-Stack AI Builder Setup

I have an AI-driven website-builder SaaS that needs a senior developer to get it production-ready and keep it running smoothly. The core stack is JavaScript/Node.js on both the server and client, so deep experience with modern Node, Express, React (or similar) and a solid grasp of ES-next patterns are essential. Your first task is to install the existing codebase on my cloud environment, resolve any dependency or build issues, and make sure the drag-and-drop builder, automated SEO routines, and library of customizable templates all compile and perform as intended. Once the platform is live, I need reliable payment-gateway integration (Stripe is the immediate priority, with the code structured so additional gateways can be added later). After the installation and debugging phase, I want ongoing support: patch new bugs, optimise performance, add incremental features, and keep the third-party libraries up to date so the SaaS stays secure and competitive. Deliverables • Clean installation with zero critical errors • Fully functioning drag-and-drop editor, SEO automation, and template system • Stripe (or equivalent) payments flowing end-to-end in test and live modes • Concise deployment notes so I can replicate the setup • Monthly code-health review and hot-fix response within agreed SLA If you have shipped production SaaS in Node.js, value clean, test-covered code, and are open to a long-term collaboration, I would like to start right away.