Web Developer

I’m the founder of a digital platform launching in the U.S. The frontend is complete — seven fully designed HTML/CSS/JavaScript files are built and ready. I need an experienced full-stack developer to wire a backend behind them. This is a meaningful, well-documented project with clear scope. Full details shared after a brief intro call with serious candidates and NDA What needs to be built • User authentication — email/password + WebAuthn (Face ID / Touch ID) • Database with row-level security — all user content strictly private until verified conditions are met • File storage — photo, video, and audio uploads • Payments — multiple pricing tiers, gift certificates, and partner referral payouts • SMS notifications via Twilio • A core two-condition content publication system — the heart of the platform • Document submission and manual verification flow • AI-assisted content moderation with human review queue • On-demand grammar checker — server-side, API-based • Transactional emails for all key user actions • Partner referral tracking and monthly payouts • PWA — must be installable on iOS and Android • Account deletion with 30-day recovery window Recommended stack Supabase · PostgreSQL · AWS S3 · Stripe + Stripe Connect · Twilio · Resend · Anthropic API · Netlify · Deepgram or Whisper Alternatives considered if you can make a case for them. Skills required • JavaScript / Node.js • Supabase — auth, PostgreSQL, row-level security — prior experience required • Stripe including Stripe Connect for payouts • AWS S3 or equivalent file storage • Twilio • PWA development — service workers, iOS and Android installability • REST API design and integration • WebAuthn / biometric authentication — preferred • Anthropic API — preferred Estimated scope 95–125 hours · 8–10 weeks · Fixed price preferred Please include your own estimate in your proposal. Budget $3,000–8,000 depending on experience and approach. Senior developers at the higher end. This is a proprietary platform. Full documentation shared after a brief intro call with serious candidates and NDA