Full Stack Developer for SaaS AI-powered platform Node.js React.js Stripe AWS

Full-Stack JavaScript Developer with React, Next.js, OpenAI & Stripe, AWS skills. We’re looking for an experienced full-stack developer to help maintain and improve an existing AI-powered web application. The product is already live. You’ll work with the current codebase to resolve issues, add features, improve performance, and support integrations with OpenAI and Stripe. We need someone who can get familiar with the application, investigate problems across the stack, and deliver changes that work reliably in production. What you’ll do: - Build and update features with React, Next.js, Node.js, and TypeScript - Investigate and resolve frontend and backend bugs - Maintain OpenAI integrations and improve AI workflows - Work on Stripe payments, subscriptions, webhooks, and billing logic - Develop and improve REST APIs and external service integrations - Work with the existing database and backend structure - Improve performance and usability - Collaborate with the team to test and release changes We review applications personally and appreciate thoughtful replies. Please start your proposal with “Orchard” to show that you’ve read the description. We’re looking for applications written by the developer who will do the work; please avoid automated outreach or proposals submitted by bots or AI agents. What we’re looking for - Solid experience with React, Next.js, Node.js, and TypeScript - A track record of building and maintaining full-stack applications - Hands-on experience with OpenAI and Stripe APIs - Good knowledge of REST APIs and frontend state management - Confidence working in an existing codebase - Strong debugging skills across frontend and backend - Ability to work independently and communicate progress clearly Additional experience we’d value - PostgreSQL or other relational databases - SaaS and AI-powered applications - Cloud hosting and deployment - Troubleshooting and supporting live products When applying Please share 2–3 SaaS projects you’ve worked on using React or Next.js, Node.js, and TypeScript, ideally with OpenAI and Stripe integrations. For each project, include a live link if available, the technologies used, and a short explanation of what you personally built or maintained.