Ugur K.

Senior Full Stack Developer, AI Native, AI Engineer, AI Accelarated

5+ Years Building Production-Grade Apps Real Startup Experience & Have worked with 30+ Startups Cloud-Deployed, Scalable, AI-Powered Invite me to your project or message me. Accepting new projects. Senior Full Stack Developer | Next.js, React Expert | AI Integration | Production Apps | Full Stack Development --- What I Deliver: 1️⃣ Full-Stack Applications - Next.js, Supabase, Firebase, React, TypeScript, PostgreSQL. Production apps with real users, cloud-deployed and scaling. 2️⃣ Backend Architecture - NodeJS, ExpressJS, NestJS, PostgreSQL, Supabase, Firebase, Microservices, RESTful APIs, GraphQL, real-time systems. Serverless and serverfull. 3️⃣ AI Integration - AI-accelerated development with Claude, Cursor, Gemini. LLM integration, chatbots. 4️⃣ SaaS Platforms - Cloud-native apps with auth, Stripe payments, LemonSqueezy Payments, Mollie Payments, Posthog - Google analytics, monitoring. AWS, Vercel, Railway, Firebase, AWS Lighthouse, hetzner deployments. --- I build production-ready applications that handle real users, real traffic, and real business constraints.
 I’ve built and scaled high-traffic event websites handling 200,000+ monthly visitors and 4,000+ transactions per month, as well as fully-functional SaaS products for startups that are actively generating MRR today. As a founder, I take products from zero to hero; owning architecture, infrastructure, and execution end-to-end. I combine enterprise-level engineering discipline with startup execution speed, delivering battle-tested systems designed to scale. --- Why Work With Me: ✨ AI-Accelerated Development - Claude, Cursor, Gemini workflows delivering 4-5x faster without sacrificing quality 🎯 Production-First - Error handling, monitoring, security, scaling from day one ⚡ Full-Stack Mastery - Database to APIs to UI/UX—complete ownership 🔧 Cloud-Native - Serverless or serverfull, architected for 99.9% uptime 📊 Real World Experience - Systems handling thousands of concurrent users in production --- Tech Stack: Frontend: React, Next.js 14+, 15+, 16+ React Native, TypeScript, Tailwind CSS, shadcn/ui Backend: NestJS, Node.js, Express, WebSocket Database: PostgreSQL, Supabase, Firebase, Prisma, Redis, MySQL, Vector DBs Infrastructure: AWS, Vercel, Netlifty, Railway, Docker, Serverless, CI/CD AI: Claude API, OpenAI, Gemini, LangChain, Claude
Payment: Stripe, LemonSqueezy, Mollie integrations --- Results: ✅ Apps with 99.9% uptime handling thousands of users ✅ 60-80% faster delivery via AI-accelerated development ✅ Scalable cloud architectures (serverless/serverfull) ✅ AI features creating competitive advantages ✅ Production code with tests, docs, monitoring --- Best For: ✔️ Startups building scalable production MVPs ✔️ Founders needing technical co-founder expertise ✔️ AI integration into existing products ✔️ Real-time, cloud-native applications ✔️ Teams valuing quality and speed ✔️ Integrating payment solutions --- 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝗼𝗿 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲. 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱. Uğur Kellecioğlu | Full-Stack Developer | AI Integration | Production Apps | SaaS | AI --- *Keywords:* 🔸 Full Stack Developer - Next.js Developer - NestJS Developer - TypeScript Developer - Node.js Developer - React Developer - JavaScript Developer - Frontend Developer - Backend Developer 🔸 React Native Developer - Mobile App Development - iOS Developer - Android Developer - Cross-Platform Development 🔸 API Development - REST API - GraphQL API - Microservices - Backend Architecture - Server-Side Development 🔸 PostgreSQL Developer - Database Developer - Supabase Developer - Firebase Developer - Database Design - SQL - Prisma - TypeORM 🔸 AI Developer - AI Integration - LLM Integration - Claude API - ChatGPT Integration - OpenAI Developer - Gemini Integration - Machine Learning Developer 🔸 Chatbot Developer - Chatbot Development - AI Chatbot - Conversational AI - Customer Service Bot - Chat Application 🔸 Cloud Developer - AWS Developer - Serverless Developer - Lambda Developer - Cloud Architecture - DevOps Engineer - CI/CD 🔸 SaaS Developer - SaaS Development - Web Application Developer - Stripe Integration - Mollie Integration - LemonSqueezy Integration - Payment Gateway - Subscription Platform 🔸 Real-Time Developer - WebSocket Developer - Socket io - Live Chat - Real-Time Application - Event-Driven Architecture 🔸 Startup CTO - Technical Co-Founder - MVP Development - Product Development - Tech Lead - Engineering Manager 🔸 tRPC - Zustand - React Query - TanStack - Tailwind CSS - shadcn/ui - Fastify - Docker - Kubernetes