Full-Stack AI App Development with Claude Code | React, Next.js, Node.js,

About this Gig

I build production-grade AI-powered applications using Claude Code as my primary development tool — backed by 5+ years of full-stack engineering experience. I've shipped a complete mobile SaaS platform (Flutter + Express + PostgreSQL) entirely with Claude Code, including push notifications, PDF generation, analytics dashboards, and subscription billing. I'm currently building another product the same way. This isn't vibe coding — it's a disciplined, senior engineering workflow with manual review of every output. What I build: • Full-stack web apps with AI features (React, Next.js, Node.js, NestJS) • Cross-platform mobile apps (Flutter) with AI-powered backends • RAG pipelines with vector databases (ChromaDB, pgvector) for semantic search and document Q&A • AI agents and internal copilots using Claude API and OpenAI API • AI-native automation workflows and document intelligence systems • Production-ready APIs with authentication, RBAC, and cloud deployment My AI stack: Claude Code, Claude/Anthropic API, GPT-4/OpenAI API, LangChain, ChromaDB, prompt engineering, MCP servers, and subagent orchestration. My dev stack: React, Next.js, Node.js, NestJS, Express, Flutter, PostgreSQL, MongoDB, Docker, AWS, GCP, Vercel, Firebase. Every project includes clean architecture, proper testing, and production-grade deployment. I don't just prototype — I ship.

Requirements

To kick off your project, I'll need: 1) A brief description of what you want to build and the problem it solves 2) Target platform (web, mobile, or both) 3) Any existing codebase, designs, or documentation (if applicable) 4) Key features and functionality you need 5) Timeline and budget expectations

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