I will build full stack ai powered apps with mern stack and nestjs


About this gig
Build intelligent, modern web apps using MERN Stack, NestJS and OpenAI.
I specialize in creating smart, scalable full-stack web applications powered by AI. Using React for the frontend and NestJS or ExpressJS for a powerful backend, I integrate tools like OpenAI, Langchain, and Pinecone to create responsive, data-aware experiences.
From AI chatbots and document-based assistants to custom dashboards and APIs I bring your vision to life with clean UI, optimized backend logic, and optional deployment to Vercel or AWS.
What I Can Deliver
- Responsive React frontend
- NestJS or Express backend
- OpenAI API integration (chat, embeddings, Q&A)
- Langchain + Pinecone setup for smart search
- Authentication (JWT/session)
- File upload (e.g. PDF AI Q&A)
- Deployment on Vercel or AWS
NOTE: Message me before placing your order so I can guide you to the perfect package.
Get to know Wahaj Khan
Web and Mobile Developer
- FromPakistan
- Member sinceDec 2022
- Last delivery2 years
Languages
Urdu, English, Hindi
FAQ
Can you build a chatbot similar to ChatGPT for my website?
Yes! I can build a smart AI chatbot using OpenAI's API with custom behavior, memory, or context—tailored to your use case.
Can you make an AI that answers questions about my files or PDFs?
Absolutely. I can integrate Langchain and Pinecone to build a document-aware assistant that lets users ask questions about uploaded content.
Do you provide backend APIs for storing or retrieving data?
Yes, I can develop secure REST APIs using NestJS or Express, with database integration (MongoDB).
