Marco C.
FreelancerTop Rated PlusI take AI-built apps from prototype to production and build the backend systems that SaaS products run on. Founders come to me when their Bolt, Lovable, or Replit build hits a wall, auth won't persist, RLS leaks data between tenants, Edge Functions fail silently, Stripe never connects. I step into the codebase, fix the architecture, and deploy. But I also build from scratch: multi-tenant SaaS platforms, AI-powered pipelines, and full-stack apps with Claude API at the core. If your app is stuck, I'll finish it. If you need a production SaaS built right the first time, I'll architect and ship it.
Recent work: rebuilt an AI music analysis backend across 4 phases (Python + Claude API + Supabase), shipped a multi-tenant voice AI receptionist (NestJS + Retell + Twilio), built a 1,300+ lead gen engine on Make, and deployed a Claude-powered chatbot with Supabase Edge Function proxy handling live traffic.
Stack: React, React Native, Next.js, TypeScript, Node.js, NestJS, Python, Supabase (Auth, RLS, Edge Functions, Realtime), Claude API, Stripe, n8n, Vercel, Railway.
United States#1,072 / 149,029Top 0.72%
Marco C. earns an estimated $7.1k/mo. That's 6× the typical freelancer and more than 99.75% of everyone we track.