Developer for Affiliate Management Software

We're building a two-sided SaaS marketplace that connects brands and agencies with content creators for performance-based UGC (user-generated content) campaigns. Think of it as a competitive alternative to platforms like JoinTrybe — combining a creator marketplace, content management, and ROAS-driven attribution with deep integrations into Meta, Shopify, and Stripe. We have a complete technical brief and architecture already scoped, including database design, API integrations, and an MVP roadmap. We're looking for a developer (or small team) who can take this from spec to working product. Tech stack: Frontend: Next.js Backend: Fastify (Node.js) Database/Auth: Supabase (Postgres) Caching/Queues: Redis Video processing/hosting: Mux Edge functions: Cloudflare Workers What you'll be building: Two-sided marketplace core: brand and creator dashboards, onboarding flows, content submission and approval workflows Meta Marketing API integration for Partnership Ads / whitelisting Shopify Partner API integration (Draft Orders) for product seeding/gifting workflows Stripe Connect Express integration for creator payouts and commission/flat-fee billing Server-side, last-click attribution pipeline using Redis (TTL-based click tracking) for ROAS reporting AI-assisted content tagging pipeline (angle/persona classification for UGC assets) Core platform features across roughly 13 functional modules (full breakdown provided) What we're looking for: Strong experience with Next.js and Node.js backend frameworks (Fastify experience a plus) Solid Postgres/Supabase experience, including auth, RLS policies, and schema design Experience integrating third-party APIs, ideally Stripe Connect, Shopify, and/or Meta Marketing API Comfort working with video infrastructure (Mux or similar) is a plus Experience with Redis for caching, queues, or attribution-style tracking Ability to work from detailed specs/architecture docs and contribute technical judgment, not just implementation Clear communicator — this is a long-term build, not a one-off task Project status: Research, technical architecture, and MVP roadmap are complete and documented (CTO-level brief available). We're now moving from planning into active development, starting with Phase 1 of the MVP roadmap.