Dato D.

Senior Node.js & NestJS Developer | Senior Full-Stack React & Next.js

👨‍💻 Full-Stack Developer with 4+ Years of Experience Node.js • NestJS • Express.js • MongoDB • PostgreSQL • React • Next.js • AWS • Stripe 🚀 I help startups and established businesses build, maintain, and scale full-stack web applications — from backend architecture to frontend interfaces and everything in between. 💼 Backend (Primary Focus): 🔧 Node.js, Express.js, NestJS — REST APIs, admin panels, scalable backend logic 🛢️ MongoDB, PostgreSQL — schema design, complex queries, performance tuning 📦 Docker, Redis, AWS (EC2, S3) — deployment, scaling, and infrastructure setup 🧪 Swagger for API docs, Jest for backend testing 🔗 Third-party integrations: Stripe, Google OAuth, AWS S3, and more 💻 Frontend: ⚡ React.js & Next.js — modern, SEO-optimized, and responsive UIs 🎨 Tailwind CSS, Shadcn UI — clean design systems 📦 Zustand & Context API — reliable and scalable state management 🧩 What I Can Help You With: 🔧 Bug fixing and performance improvements 🧱 Refactoring and extending legacy codebases ✨ Adding new features to existing systems 🚀 Building new apps from the ground up 🔌 Integrating external services and APIs ✅ Clean, maintainable code with clear structure ✅ Strong focus on quality, deadlines, and communication Whether you're launching a new product or improving an existing one — I can jump in, solve problems fast, and deliver results. 💬 Available for freelance and contract work.