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$
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I will build a full stack ai web application with react and next js
Mesut Ertas
About this gig
I build full-stack AI web applications with React, Next.js and Node.js.
From a single-page MVP to a full platform, I deliver clean, working, production-ready web apps. I specialize in integrating AI (OpenAI GPT, Claude) into modern web interfaces with solid backends and databases.
What I offer:
- Full-stack development with React, Next.js, TypeScript and Node.js
- AI integration: chatbots, assistants, GPT and Claude features
- Backend, REST APIs, database design (PostgreSQL, Prisma)
- User authentication, real-time features, admin panels
- Responsive, modern UI with clean code
- Multi-language support, including Turkish
My featured projects:
- LinguaChat a multilingual real-time chat platform with AI, phone/OTP auth, group messaging and live voice.
- Kapımda a large-scale Turkish marketplace combining classifieds, e-commerce and delivery.
- HYS AVM a full e-commerce redesign built with Next.js and TypeScript.
How it works:
- You share your idea, features and goals
- I plan the architecture and build the app
- You review, I refine, you get a working product
Please message me before ordering so we can scope your project and pick the right package.
Get to know Mesut Ertas
Mesut Ertas
AI Powered App Developer and LLM Integration Specialist
- FromTurkey
- Member sinceJul 2026
Languages
Turkish, English
I build AI-powered web applications: chatbots and assistants powered by OpenAI and Anthropic (Claude) APIs, plus full-stack development with React, Next.js, TypeScript and Node.js. I integrate large language models, speech (text-to-speech / speech-to-text), and AI video avatars into production-ready apps. My featured project, CLIMAX AI, is a full-stack AI video avatar assistant with four interactive characters. I focus on clean, working solutions delivered end to end.
Other AI Development Services I Offer
FAQ
Which technologies do you use?
React, Next.js, TypeScript, Node.js for the backend, and PostgreSQL with Prisma for databases. For AI features I use OpenAI (GPT) and Claude.
Do you build the backend and database too?
Yes. I build full-stack apps: frontend, backend, REST APIs, database design, and user authentication. Backend and database are included from the Standard package.
Can you add AI features like a chatbot or assistant?
Yes. I can integrate GPT or Claude powered chatbots, assistants and other AI features directly into your app. This is one of my main specialties.
Do I get the source code?
Yes, full source code is included in the Standard and Premium packages, and available as an extra on Basic.
What do you need from me to start?
A clear description of your idea, the features you want, any design references, and API keys if AI integration is needed. Message me first so we can scope it.
