Jimmy P.

I build and fix AI-powered web apps with Claude Code, Supabase and Next.js, and take vibe-coded apps from Lovable, Cursor, Bolt or Replit to production. 110 completed jobs, 100% Job Success, Top Rated Plus, over $100K earned on Upwork. Top 10% of builders on Lovable worldwide (Diamond level). AI tools build 80% of your app in days. I build the 20% that decides whether it survives real users, real payments and real growth. WHAT I DO ✔ BUILD: Your SaaS or web app MVP from zero with Next.js or React, Supabase and Stripe. Fixed-price milestones, live in weeks. ✔ RESCUE: Your AI-built app is stuck? Bugs that keep coming back, AI "slop", broken flows, security holes. I stabilize codebases from Claude Code, Lovable, Cursor, Bolt or Replit, without starting over. ✔ SUPABASE & SECURITY: Database design, Row Level Security, auth and user roles, Edge Functions, migrations. Your users only ever see their own data. ✔ CLAUDE AI FEATURES: Chatbots, agents and automations built on the Claude API (and OpenAI where it fits), plus MCP servers, n8n and Make workflows. ✔ MOBILE: Your web app in the App Store and Google Play with Capacitor, on the same backend. ✔ CLAUDE CODE SETUP: Want to build with Claude Code yourself? I set up your repo, CLAUDE.md, skills and workflows, and coach you and your team to ship safely with it. WHY AI-BUILT APPS FAIL, AND WHY MINE DON'T Most AI-built apps look finished and aren't. Multi-step operations without transactions. Database rules that leak data. Payments that break on edge cases. Duplicate records when a user taps twice. I design the schema, auth and payment flows first, and I read and test every line Claude or any other AI writes. That's the difference between a demo and a product. HOW I WORK 1. Scope call: what needs to be built, and what doesn't 2. Architecture first: schema, auth, permissions, payments 3. Milestones: working software every few days, no big reveal 4. Handover: clean code in your GitHub and docs your next developer will thank you for STACK AI tools: Claude Code, Cursor, Lovable, Bolt, v0, Replit AI APIs: Claude (Anthropic), OpenAI, MCP Frontend: Next.js, React, TypeScript, Tailwind Backend: Supabase (PostgreSQL, RLS, Auth, Edge Functions, Realtime, pgvector), Node.js Payments & integrations: Stripe, Resend, Twilio, Shopify, Notion, n8n, Make Mobile: Capacitor (iOS & Android) | Hosting: Vercel, GitHub Languages: English, German, French, Luxembourgish, Portuguese. I work with founders across the US, DACH, France, Benelux and Portugal, in your timezone if you're in Europe. Send me your project link (or your idea), who it's for, and when you need it live. Within 24 hours you get a clear scope, a realistic timeline, and an honest answer on whether I'm the right fit.