On-Call Full-Stack Developer for Web App

I’m looking for a reliable full-stack developer to support and maintain an already-built web app called Dentalverse. Dentalverse is an educational web app for dental students and dentists. The main web app is already developed, but I need a developer who can be available when needed to fix bugs, make updates, improve features, and help keep the platform stable. This is not a full-time build-from-zero role. I need someone who can understand the existing codebase, respond when issues appear, and work efficiently using AI coding tools such as Claude AI, Cursor, or similar tools. Responsibilities: Fix bugs in the existing web app Make small to medium updates when requested Improve existing features and UI when needed Work with Next.js / React codebase Handle Supabase-related tasks if needed Check and fix API/backend issues Help with deployment issues on Vercel Use Claude AI / Cursor or similar tools to speed up development Be available on-call when urgent fixes are needed Communicate clearly about what was fixed and what changed Document important changes or issues Work carefully without breaking existing features Requirements: Strong experience with Next.js and React Experience with Supabase Experience with Vercel deployment Comfortable using AI coding tools like Claude AI, Cursor, or GitHub Copilot Ability to understand an existing project quickly Good debugging skills Reliable and responsive Good written English Able to work independently without needing daily supervision Honest about timelines and technical limitations Nice to have: Experience with SaaS products Experience with educational platforms or AI-powered apps Experience with file uploads, PDF/DOCX/PPTX handling, AI APIs, or OpenAI integration Good eye for UI/UX improvements Ability to suggest better technical solutions when needed Important: I need someone who can be available when needed. Some weeks may have little work, and other weeks may require urgent fixes or updates. The ideal candidate should be flexible, responsive, and interested in a long-term collaboration. This can start as an hourly/on-call role. If the collaboration goes well, it may grow into a larger long-term technical support role.