Kalemba J.

Flutter | React Native | AI-Assisted Full-Stack Development

Your AI-generated app worked in the demo — then broke in production? I take over vibe-coded and AI-assisted codebases (Lovable, Cursor, Bolt, Claude Code, Replit) and turn them into stable, shippable products. I also build new apps the same AI-accelerated way, 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 and Flutter, full-stack web with Next.js, React, Node.js and TypeScript — APIs, databases, auth, payments, and deployment included, not bolted on after. 3. Ship offline-first and connectivity-constrained apps Recent work includes offline-first mobile apps and BLE peer-to-peer connectivity — practical experience building for users on unreliable networks, not just fast ones. CORE STACK Mobile: React Native, Expo, Flutter/Dart, iOS, Android Web: React, Next.js, Node.js, TypeScript Backend/data: PostgreSQL, MongoDB, Supabase, Firebase, Prisma Infra: Docker, Nginx, VPS deployment, GitHub Actions, Cloudflare Payments/integrations: Stripe, Pesapal, REST/GraphQL APIs, Google APIs AI development tools: Claude Code, Cursor, Lovable, Bolt, Replit, GitHub Copilot, Claude API / OpenAI API integration RECENT WORK - Deployed and iterated a Lovable-built mobile app through TestFlight for a live client (5-star, endorsed for responsiveness and iteration) - Resolved a complex React Native migration for a legacy app - Solved urgent BLE peer-to-peer connectivity issues under deadline - Built and maintain several TypeScript/React Native and Flutter apps currently in progress, including offline-first tools and a membership platform with integrated payments (Pesapal) and multi-service infrastructure (VPS, Nginx, Cloudflare) If you have a project built with Lovable, Claude Code, Cursor, Bolt, Replit, or another AI tool that's stuck, buggy, or hard to maintain — or you need something built from scratch the same way — send me a brief description of where it stands. I'll tell you plainly whether it's a quick fix, a bigger rebuild, or fine as-is.