Full stack developer - next.js /Supabase /Stripe/ OpenAI API

We’re looking for an experienced full-stack developer to help build and launch the MVP for our early stage startup. ### Stack Next.js, TypeScript, Supabase, OpenAI APIs, Stripe. ### What you’ll work on * core application flows and AI-powered workflows; * secure anonymous user experience and data persistence; * structured AI outputs and deterministic application logic; * Stripe, email, analytics, and automated testing; * internal tools for reviewing and improving AI output quality. ### What we’re looking for * strong Next.js/TypeScript experience; * hands-on experience building production apps with LLM/OpenAI APIs; * solid Supabase/Postgres and authentication/security experience; * comfortable with Stripe integrations; * strong testing mindset; * able to work independently and make pragmatic architectural decisions without overengineering. This is an early-stage startup, so speed, simplicity, and good judgment matter and can make a huge difference. ### To apply Please send: 1. 1–2 relevant products you personally built; 2. what parts you owned; 3. your experience with OpenAI/LLM applications; 4. your hourly rate and weekly availability; Please do not send a generic proposal.