You will get a custom AI assistant or web app using OpenAI
Top Rated
Top Rated
Project details
You will get a custom AI assistant or ChatGPT-style web app built around your business idea, workflow, or customer support needs. I will help you turn your idea into a working AI solution using OpenAI, LLMs, backend APIs, and a clean user-friendly interface.
What makes this project different is that I do not only connect an AI API and call it done. I focus on the real user flow, prompt quality, backend structure, response accuracy, and how the assistant will actually help your business.
I have worked on AI SaaS platforms, AI content tools, ChatGPT-style assistants, and backend systems for real products, including TubeGenius, FireVideos, LayerK Agent, and Geviti.
You can use this service for AI chatbots, customer support assistants, internal tools, AI copilots, content generation tools, or SaaS MVPs.
The final result will be practical, clean, and ready to use.
What makes this project different is that I do not only connect an AI API and call it done. I focus on the real user flow, prompt quality, backend structure, response accuracy, and how the assistant will actually help your business.
I have worked on AI SaaS platforms, AI content tools, ChatGPT-style assistants, and backend systems for real products, including TubeGenius, FireVideos, LayerK Agent, and Geviti.
You can use this service for AI chatbots, customer support assistants, internal tools, AI copilots, content generation tools, or SaaS MVPs.
The final result will be practical, clean, and ready to use.
What's included
| Service Tiers |
Starter
$400
|
Standard
$800
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 4 days | 8 days | 14 days |
Number of Revisions | 1 | 1 | 2 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
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FE
Firdevs E.
Jun 21, 2026
AI Engineer Needed for OpenAI RAG Chatbot
Excellent experience working with Hassaan! He successfully built and integrated a powerful RAG system into our platform. The AI's context retrieval is spot on, and the implementation is seamless.
IM
Ivana M.
Oct 7, 2025
Full Stack developer needed (A)
It was a pleasure working with this freelancer. Communication was smooth, deadlines were respected, and the overall collaboration was professional and efficient. I would definitely consider working together again in the future. Recommended!
BO
Brandon O.
Aug 25, 2025
Help - Back end
SM
Scott M.
May 26, 2025
Firebase / Stripe Integration Developer for Gmail Chrome Extension
Hassaan is a great guy and I enjoyed working with him.
TY
Tim Y.
Jan 17, 2025
Senior Fullstack Engineer
About Hassaan
AI SaaS Developer | RAG, AI Agents & Next.js
100%
Job Success
Lahore, Pakistan - 3:51 am local time
One of my key projects was "TubeGenius" an AI-powered SaaS platform for YouTube creators. I helped turn the client’s idea into a working product with AI script and title generation, a user-friendly web application and scalable backend functionality. The project grew into a $9,000+ engagement and received excellent client feedback.
More recently, I built and integrated a RAG system into an existing platform. The client highlighted the accuracy of the context retrieval and the seamless implementation.
✅What I Can Help You Build
- AI-powered SaaS platforms
- RAG chatbots and knowledge-base applications
- OpenAI and Claude integrations
- AI content-generation tools
- React and Next.js web applications
- Node.js and Python backend systems
- Subscription platforms with Stripe
- User authentication, roles and dashboards
- REST APIs and third-party integrations
- PostgreSQL and scalable database architecture
- Existing application completion and debugging
- MVP development and production deployment
⭐Core Technology Stack
◾AI and LLMs: OpenAI API, Claude, RAG, embeddings, vector search, AI chatbots, prompt workflows and structured outputs
◾Frontend: React, Next.js, TypeScript, JavaScript and responsive SaaS dashboards
◾Backend: Node.js, Express.js, Python, FastAPI and REST API development
◾Databases: PostgreSQL, MongoDB, Firebase and Supabase
◾SaaS and Integrations: Stripe, authentication, subscription billing, third-party APIs and webhooks
◾Infrastructure: AWS, Docker, Vercel and cloud deployment
✅Relevant Experience
⭐TubeGenius
AI SaaS platform for YouTube creators built using React, Next.js, Node.js, OpenAI and Firebase.
⭐FireVideos
AI-powered content and video platform built with React, Node.js, Flask, Firebase and OpenAI.
⭐LayerK Agent
AI agent platform built using Next.js, Node.js API routes, OpenAI and Vercel.
⭐RAG Chatbot Integration
Built and integrated a context-aware RAG system into an existing production platform.
✅Why Clients Work With Me
-- Clients consistently describe me as reliable, collaborative, professional and easy to communicate with.
Recent feedback includes:
⭐“Excellent experience working with Hassaan! He successfully built and integrated a powerful RAG system into our platform.”
⭐“Hassaan helped to bring my vision to life in a spectacular way. Working with him was smooth and simple, and at the end of the day my SaaS just works.”
I can help whether you are starting with an idea, improving an existing MVP or scaling a working AI product.
Send me a short description of your product, current stack and the feature or problem you need help with. I will review it and suggest the most practical next step.
⭐Send me a Message or Invite me to your job and we can discuss your Project
Steps for completing your project
After purchasing the project, send requirements so Hassaan can start the project.
Delivery time starts when Hassaan receives requirements from you.
Hassaan works on your project following the steps below.
Revisions may occur after the delivery date.
Review your requirements
I will review your AI assistant idea, goals, content, and technical details.
Plan the AI workflow
I will define how the assistant should respond, what data it should use, and how the user flow will work.