Bhumi S.

Are you looking for a reliable, senior-level Full Stack Developer who delivers clean code, pixel-perfect UI, and production-ready applications — on time, every time? With 10+ years of experience and Top Rated Plus status on Upwork, I specialize in building scalable web and mobile applications for startups, SaaS companies, and e-commerce brands worldwide. What I bring to your project: 🔹 Frontend Excellence — React.js, Next.js, TypeScript, Tailwind CSS, Redux 🔹 Backend & APIs — Python (FastAPI, Django), Node.js, Express.js, REST, GraphQL 🔹 AI Integration — OpenAI APIs, LangChain, prompt engineering, LLM-powered features 🔹 Mobile — Cross-platform apps with React Native & Expo 🔹 Shopify — Custom theme development, Liquid code, Shopify Flow, Matrixify 🔹 CRO & A/B Testing — Dynamic Yield (Expert), Osano (Advanced), Rebuy 🔹 Cloud & DevOps — AWS, GCP, Docker, CI/CD pipelines, GitHub Recent highlights: ✅ Built a Security SaaS platform with LLM-powered threat analysis (Next.js + Python + LangChain) ✅ Delivered 1,900+ hours on a large-scale enterprise React/Next.js application ✅ Developed real-time token streaming platforms with WebSocket integration ✅ Implemented full Shopify storefronts with advanced CRO and personalization strategies ✅ Built full MERN + React Native apps deployed on AWS Whether it's a greenfield product, a complex feature, or a Shopify store that needs to convert — I've done it, and I'll bring that same expertise to your project. Let's build something great. Send me a message!