Juan B.

Your app was built with Lovable, Base44, Bolt, v0 or another AI tool. It works in the demo, but it breaks with real users, the database rules are a mystery, and nobody wants to touch the code. That's exactly what I fix. I'm a Top Rated Plus full-stack developer who takes AI-built apps and makes them production-ready: clean architecture, secure data, working auth and payments, and a codebase you own and can hand to any developer. I also build MVPs and SaaS products from scratch, from idea to launch in weeks. What I fix in AI-built apps - Supabase backends with missing or broken Row Level Security, messy schemas and exposed keys - Migrations off Base44 or Lovable onto a stack you own (Next.js with Supabase or Convex) - Auth, Stripe payments and deployments that hold up under real traffic - Code audits that tell you what's safe to keep and what needs to be rebuilt, before you spend more What I build from scratch - MVPs: lean architecture and fast iteration, with a clear path to production - SaaS platforms: auth, subscriptions, admin dashboards, analytics, multi-tenant setups - Marketplaces: two-sided platforms with onboarding, booking, reviews and secure payments - AI features: chatbots, LLM integrations (OpenAI, Claude), voice input and knowledge-base routing - Custom web apps and APIs: internal tools, client portals, CRMs, third-party integrations Selected work - GetItDone PM: took over a field service management SaaS built on AI-generated code and rebuilt it into production-ready architecture. Scheduling, multi-role dashboards, photo documentation and workflow automation. - SignalSuite: cleaned up an app built in Lovable, fixed the whole Supabase backend and set up proper infrastructure. - Play Ahead (playahead.app): migrating an NIL athlete tax calculator off Base44 onto a production Supabase backend the client fully owns, with security hardening and AI document extraction. - Cultripia: a two-sided experiences marketplace, built from zero to launch in 4 weeks. Stripe payments, multi-role onboarding, booking, reviews, search and filtering. - LeanZupply: set up the infrastructure and Supabase backend (with RLS) for a D2B industrial marketplace in Spain, plus an AI chat advisor, GA4 tracking, Trustpilot integration and internationalization. - PathwayEd: AI tutoring app for K-12 with GPT-4o streaming, Whisper voice input and text-to-speech, used by the client at school vendor fairs. - AMZ Design Kit: lead developer on a media-heavy platform that analyzes Amazon storefronts for design insights. - Tecnilab: internal operations platform for a geotechnical engineering company in Panama. Production pipeline tracker, live GPS fleet dashboard and a QR/PDF fuel order system, built with Next.js, Convex and Clerk. Stack React, Next.js, TypeScript, Tailwind CSS. Node.js, Supabase, Convex, PostgreSQL, GraphQL and REST APIs, Python. Clerk, WorkOS and BetterAuth for auth, Stripe for payments, Vercel, Docker and Kubernetes for deployment. English and Spanish, both native. Based in Panama, working full US business hours. Got an AI-built app that needs to be production-ready, or an MVP you want launched? Send me the link or the idea and I'll tell you honestly what it needs.