Kalemba J.

Your AI-generated app worked in the demo—then broke in production? I rescue vibe-coded and AI-assisted codebases (Lovable, Cursor, Bolt, Claude Code, Replit) and turn them into stable, production-grade products. I specialize in Legacy App Modernization and cross-platform architecture using React Native, Flutter, and Capacitor. I also build new apps using the same AI-accelerated velocity when speed matters more than rescue. === WHAT I DO === 1. Fix and Finish AI-Generated Apps Bugs, broken integrations, inconsistent architecture, features that never quite got finished—I read the existing codebase, find the real problem, and refactor or rebuild only what needs it. I don't throw out working code to start over. 2. Build Production-Ready Web + Mobile Apps Cross-platform mobile with React Native/Expo, Flutter, and Capacitor; full-stack web with Next.js, React, Node.js, and TypeScript. APIs, databases, auth, payments, and deployment are native, not bolted on after. 3. Ship Offline-First & Connectivity-Constrained Apps Deep practical experience building for users on unreliable networks, including offline-first architecture, background sync, and BLE peer-to-peer connectivity. === CORE STACK === • Mobile & Hybrid: React Native, Expo, Flutter/Dart, Capacitor, iOS, Android • Web & Full-Stack: React, Next.js, Node.js, TypeScript • Backend & Data: PostgreSQL, MongoDB, Supabase, Firebase, Prisma • Infrastructure: Docker, Nginx, VPS deployment, GitHub Actions, Cloudflare • Payments & Integrations: Stripe, Pesapal, REST/GraphQL APIs, Google APIs • AI Orchestration: Claude Code, Cursor, Lovable, Bolt, Replit, Copilot, LLM API integrations === RECENT WORK === • Rescued an AI Build: Deployed and iterated a Lovable-built mobile app through TestFlight for a live client (5-star review, endorsed for responsiveness). • Legacy App Migration: Resolved a complex legacy React Native migration to stabilize outdated infrastructure. • Hardware/BLE Connectivity: Solved urgent BLE peer-to-peer connectivity issues under a strict enterprise deadline. • Active Production Apps: Build and maintain several TypeScript, React Native, and Flutter apps—including offline-first tools and a membership platform with integrated payments (Pesapal). ================ If you have a project built with Lovable, Claude Code, Cursor, Bolt, Replit, or another AI tool that's stuck, buggy, or unmaintainable—or you need something built from scratch the same way—send me a brief description of your codebase. I'll tell you plainly whether it's a quick fix, a bigger rebuild, or perfectly fine as-is.