Kelvin C.

Top Rated: AI Full Stack Engineer | React, Node, Next.js, Python

🚀 I help founders, agencies, and SMEs ship web and mobile products fast, from MVP to production, without messy code or communication headaches. I am a Full Stack Product Engineer focused on delivery, clarity, and maintainability. If you need someone who can turn a rough idea into a working release, improve an existing product, or move faster with reliable execution, I can help. ✅ What I build • MVPs and SaaS apps with a clean launch plan and predictable milestones • Modern, responsive frontends with React and Next.js • React Native apps including deep linking, push notifications, and smooth UX • Secure APIs with Node.js using Express or NestJS • Databases and data layers with PostgreSQL, Prisma, Firebase, MongoDB, or MySQL • Real time features with WebSockets and performance improvements with Redis caching 🤖 AI, when it makes sense • OpenAI style integrations for chat, summarization, extraction, and assistants • AI workflows for support, internal operations, and automation • Practical AI features that fit the product UX and include safety guardrails 🧠 How I work Clear scope, clear timelines, weekly updates, and visible progress. I write readable code, keep things organized, and make handoff easy for any developer who joins later. 📈 Proof of delivery I shipped an MVP in 6 weeks that grew to 5,000 plus users and started generating revenue. I have also worked on products with 25,000 plus active users, shipping features fast and keeping releases stable. Additionally, I have partnered with agencies to integrate AI into client products and workflows, supporting client communication and delivery to ensure projects stay on track and meet real business goals. 📩 Send your brief and timeline, and I will reply with a short plan and a clear quote.