Ariful W.

Senior Full Stack Developer | React Native, Next.js & AI Integration

Need a Full Stack Developer who ships to production, not just prototypes? I build React, Next.js, and React Native apps with real AI integration - live voice agents, RAG pipelines, and 10+ apps published on the App Store and Google Play. Most React developers stop at the demo. I take mobile apps all the way through App Store and Google Play submission, review, and rejections until they're live - and I build AI systems that actually run in production, not chatbot mockups. As a one-person full stack team, I own the frontend, backend, and AI layer end to end, so you get a single accountable developer instead of a hand-off chain. Frontend: React, Next.js, and TypeScript builds that are fast, responsive, and SEO-friendly, plus React Native/Expo apps sharing one codebase across iOS and Android. Backend: Node.js, Express, and FastAPI APIs backed by PostgreSQL, MongoDB, Supabase, or Redis, with authentication, roles, and multi-tenant isolation enforced at the database layer. AI Integration: LLM and RAG pipelines using OpenAI and Claude SDKs, vector databases, and voice AI built on Twilio for real-time conversational agents. Whether you need an MVP launched fast or AI added to a product that's already live, I'll tell you honestly what's a weekend fix and what's a month-long build - then deliver it. Top Rated on Upwork with a 4.98 rating across 30 completed jobs and 1,100+ hours logged. Trusted by 50+ global clients across SaaS, EdTech, and marketplace platforms, with 10+ mobile apps published live on the App Store and Google Play. Ready to discuss your project? Send me a message with what you're building and I'll reply within a day with an honest scope and timeline.