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🚀 Top 1% Upwork Developer | 100% Job Success Score ✅ 4+ 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 $50.00/hr --- 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. --- Hi! 👋 I’m Murat Efe Dogan.
 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. Murat Efe Dogan | 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

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

FREE technical consultation (details below) 🐻 Proud Comsats graduate (Software Enginnering) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). I help entrepreneurs, startups, and businesses turn ideas into fully launched products. Whether you need a mobile app on iOS and Android, a scalable web application, or both, I handle everything from initial design to App Store and Play Store deployment. With 7+ years of experience in Full Stack JavaScript/TypeScript and React Native development, I build production ready applications that scale, perform seamlessly, and deliver exceptional user experiences. What I Build ? Mobile Apps: Cross platform iOS and Android apps with React Native, Expo, push notifications, offline sync, in app purchases, real time features, payment integrations, and complete App Store and Play Store publishing. Web Applications: High performance web apps with React, Next.js, Node.js, server side rendering (SSR), static site generation (SSG), responsive design, SEO optimization, and Progressive Web Apps (PWA). AI Powered Solutions: Integration of OpenAI, Claude, Gemini APIs for chatbots, content generation, image creation, speech recognition, natural language processing, and intelligent automation. Tech Stack: Frontend: React, Next.js, React Native, TypeScript, TailwindCSS, Material UI, Shadcn UI, Redux, Zustand, React Query Backend: Node.js, Express, NestJS, Fastify, GraphQL, Socket io, JWT authentication Mobile: Expo, React Navigation, push notifications, biometric auth, deep linking, native modules AI Integration: OpenAI GPT 4, Claude API, Gemini, LangChain, vector databases, RAG systems Databases: PostgreSQL, MongoDB, MySQL, Firebase, Supabase, Redis, Prisma, TypeORM I deliver end to end solutions from wireframes to deployment, ensuring your product is scalable, secure, and ready for users. Let me help you build and launch your next successful product. 𝗦𝗲𝗮𝗿𝗰𝗵 𝗺𝗲 𝘂𝘀𝗶𝗻𝗴 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Mobile App Developer, React Native, Swift, Android Development, IOS App development, SaaS Developer, Full Stack SaaS Developer, SaaS Application Developer, SAAS Only, SAAS Development, React Developer, Next.js Developer, JavaScript Developer, TypeScript Developer, Node.js Developer, SaaS Architect, Startup MVP Developer, Software Engineer, Web Application Developer, Product Developer, CRM Developer, ERP Developer, Dashboard Developer, Multi-Tenant SaaS Developer, Subscription Platform Developer, Stripe Integration Expert, API Integration Developer, AI SaaS Developer, Cloud Application Developer, B2B SaaS Developer, SaaS Product Engineer, Full Stack Engineer.

🔝 TOP RATED PLUS FREELANCER 🔝 💯 Job Success Score 💯 ⭐⭐⭐⭐⭐ - 5 stars on Upwork. ✅ 15+ Years Experience ✅ 6 months free bug fix guarantee I have worked on several projects with 15 years software experience. I worked as a Full Stack Developer in most projects. I have developed many projects with PHP, AspNet, C#, Laravel, React, React Native, Noje.JS/Javascript, languages. I am also a WordPress plugin developer. I am experienced in MYSQL, MSSQL, MongoDB, SQLLite databases. I am also experienced with Webflow and Wix Velo. My Works ✅ Content Manager System(Php Laravel + Lumen)(100 web site) ✅ University information system(asp net,c#,mssql)(20K users) ✅ Learning Management System (Online course) ✅ Football Referee Management System ✅ React Native IOS-ANDROID APP ( 6 app) ✅ and dozens of small projects that I could not think of. ✅ this area is for your project :) ⭐⭐⭐⭐⭐ Some customer reviews. ⭐⭐⭐⭐⭐ ➡️ "I'm working with Salih for about a year now on a project, he developed a new system with own login page for customers. Salih is great in the work that he did so far. He respond quick when there is an issue that has to be solved and very helpfull when i have questions. He also respect the time limits that he gives to complete a milestone. I recommend Salih highly, and hope to continue working with him that way in future." ⭐⭐⭐⭐⭐ ➡️"Salih is a Rock Star. This guy knows his stuff. I had a Laravel server issue and he went above and beyond. Super fast. I recommend!! I will be using his services again. Thank you so much Salih! You saved my project!!" ⭐⭐⭐⭐⭐ ➡️"Salih is an awesome developer who helped me out with some JavaScript code that 3 other developers couldn't solve. He's a great guy with good knowledge and skills. I'm recommending him to anyone who needs a professional to finish all kinds of tasks, especially complex ones." ⭐⭐⭐⭐⭐

Application Architecture | Project Manager | Full Stack Developer with +14 years experiences in Web based Apps and Systems: * Designed and developed web applications across multiple APIs, third-party integrations and databases. * Talented in project management, team leadership and independent problem-solving. * Highly organized multitasking with expertise in scheduling projects, enhancing designs and verifying code.

“The solution to every technical problem is a developer who takes ownership of your project.” Hi, I’m a senior software developer with over 15 years of experience specializing in .net and web technologies, delivering high-quality, scalable, and secure software solutions. Currently, I’m working as the Backend Team Lead on a large-scale SaaS project in the field of Sales Force Automation (SFA) leading architecture, development, and integration efforts across a microservices ecosystem. • I have deep expertise in enterprise projects, microservice architecture, API integrations, and performance-focused systems. • Proficient in C#, .NET Core, EF Core, Dapper, RabbitMQ, Redis, SQL Server — with a proven track record of successful projects. • I apply modern development practices using Docker, Kubernetes, CI/CD pipelines, and DevOps automation. • I maintain the highest standards in code quality, security, and long-term maintainability. What sets me apart? I don’t just deliver code — I deliver peace of mind. I proactively solve problems, take full ownership, and become a true partner in your success. "No matter what your project involves, I’m confident we’ll achieve exceptional results together. Send me a message, and let’s get started!" Specialize in: • Enterprise Web & API Development (.NET Core, RESTful APIs) • Microservices Architecture & Distributed Systems • High-performance Data Access using EF Core & Dapper • ERP/CRM Integration (SAP, Microsoft Dynamics, Salesforce, Logo, Mikro, Netsis) • Scalable System Design with Caching (Redis) • Containerization with Docker & Orchestration using Kubernetes • CI/CD Pipeline Design and Automation (Azure DevOps, GitHub Actions) • Resilient Messaging Systems (RabbitMQ with MassTransit) • Code Quality & Lifecycle Management (SonarCloud, SOLID Principles) Tech Stack & Tools: • C#, ASP.NET Core, EF Core, Dapper, ADO.NET, REST, SignalR, WebAPI • MS SQL, PostgreSQL, MongoDB • Docker, Kubernetes, Redis, RabbitMQ, MassTransit, IdentityServer4, OAuth2 • Azure, AWS, Git, CI/CD, SonarCloud, Agile/Scrum • Blazor, MVC • React , TypeScript, Vue Js, Vite Js, Node Js • Flutter, Xamarin • HTML, CSS, JavaScript