Huzaifa S.

Full Stack Mobile App & AI Developer | iOS & Android | MVP & SaaS

"Huzaifa is the type of freelancer that you dream of finding on Upwork. He didn't just code, he took ownership of the product itself." ; Ben Feifke, Founder of HeyChef Hi, I'm Huzaifa Shah. I lead a small, senior team based in Pakistan, and we build mobile apps, AI automation systems, and full-stack web platforms for startups and growth-stage companies. My clients usually come to me for one of three reasons: 1. They have an MVP, SaaS product, or marketplace to ship fast and need a senior team that moves quickly without cutting corners on architecture, so growth doesn't force a full rebuild later. 2. They need a production-grade mobile app (Flutter, iOS, Android) that handles real users without breaking, not a prototype that gets rebuilt six months after launch when things get serious. 3. They want to automate real business processes with AI, chatbots, RAG pipelines, AI agents, document intelligence, voice automation, and need someone who has shipped these in production, not just built demos for a portfolio. What makes us different: I personally lead every project. My team handles execution under my direct supervision, which means you get the speed of a team with the accountability of a senior developer who actually cares about your product. That's why every review on this profile is 5 stars and my Job Success Score is 100%. Here's what I deliver: ✔ Mobile App Development: Flutter, React Native, iOS (Swift), Android (Kotlin). We've shipped 20+ production apps including marketplaces, on-demand platforms, fintech, healthcare, fitness, and AI-powered apps. Real-time features, payments, maps, push notifications, App Store / Play Store submission, all handled. ✔ AI Automation & AI App Development: Chatbots, AI agents, RAG knowledge systems, document intelligence, workflow automation (n8n, Make), OpenAI/Claude/Anthropic API integration, vector databases (Pinecone, Supabase). We build AI that solves business problems, not AI that looks impressive in demos. ✔ Full-Stack Web Development: Next.js, React, Node.js, TypeScript, Supabase, Firebase. SaaS platforms, admin dashboards, marketplaces, and web apps that connect cleanly to your mobile product. API-first architecture so everything scales together. ✔ Cloud & Performance: AWS, GCP, Azure deployment. Performance optimization for slow apps, scaling infrastructure for growing traffic, and CI/CD setup so you can ship without breaking things. 🌟 Recent Client Feedback: "Truly exceptional is one word to explain how good Zaif and his people are. I've worked with a lot of developers, and Zaif is easily the best." ; William Miller, Founder of Rosper "Working with Huzaifa and his team has been one of the best experiences we've had on Upwork." ; Joshua Scott, Founder of Quench "Huzaifa arrived to my project when I was in a tight spot. He communicated a realistic timeline and met it with ease." ; Past Upwork client ✅ Top 1% Mobile App and Web App developer ✅ 100% Client Success Score ✅ I'm hands-on. You talk to me directly, not an account manager. ✅ We treat your product like our own. If we spot something you missed, we tell you. ✅ We over-communicate. Daily updates, Loom walkthroughs, and zero ghosting. Industries we've built for: Fintech, healthcare, real estate, e-commerce, on-demand services, fitness, education, marketplaces, social platforms. Tech we use: Flutter, React Native, Swift, Kotlin, React, Next.js, Node.js, TypeScript, Python, Firebase, Supabase, MongoDB, PostgreSQL, AWS, GCP, OpenAI API, LangChain, Pinecone, n8n. If you're building something that matters, a mobile app, an AI product, or a full SaaS platform, let's talk. Send me a message with what you're working on and I'll reply with honest, specific thoughts on your project.