I will develop ai powered web apps, prompt engineering, llm integrations


Vetted Pro
Level 2
Vetted by Fiverr Pro
Khalid Mehmood was selected by the Fiverr Pro team for their expertise.
About this gig
Are you looking to build a modern, AI-powered web app that's fast, smart, and scalable?
You're in the right place!
I'm a Node.js and AI integration expert who specializes in creating intelligent web applications powered by OpenAI, LangChain, and other LLMs.
With strong backend architecture and advanced prompt engineering, I'll help you bring your AI ideas to life, whether it's a chatbot, automation tool, or a full SaaS platform.
What I Offer
- AI-powered web app development using Node.js & Express
- Prompt engineering for better and more accurate AI responses
- Integration with OpenAI, Gemini, or Claude APIs
- Backend logic and secure API endpoints
- Database setup (MongoDB, PostgreSQL, or Firebase)
- Clean, scalable, and production-ready code
Perfect For
- Startups building AI SaaS products
- Businesses adding AI features to their apps
- Developers needing a backend expert for LLM integrations
Let's turn your idea into a real, intelligent AI product.
Message me today, I'd love to help you build something amazing!
Get to know Khalid Mehmood
Vetted Pro
Full Stack Web developer
Level 2
Khalid Mehmood is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
AI Development
Software Development
- FromPakistan
- Member sinceFeb 2021
- Avg. response time1 hour
- Last delivery1 month
Languages
Urdu, English
My Portfolio
FAQ
What kind of AI applications can you build?
I can build AI-powered web apps, chatbots, SaaS platforms, automation tools, and custom AI integrations using Node.js, LLMs (like GPT, Claude, Gemini), and LangChain.
9 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
V 
vipstore_

United Kingdom
Order Canceled
This is very disappointing experience. The delivery and system were not working properly and caused serious issues on my side. The website became unstable and even admin access stopped working after updates. Communication was not clear and multiple problems were left unresolved. Overall, the quality...
$400-$600
Price
8 days
Duration
K 
Seller's Response
Helpful?A arnaldoalves26

Brazil
An excellent and experienced professional. Agile development; clear and concise documentation and code. He masters the latest technologies and applies them to the project. He quickly grasps the scope and objectives. Excellent value for money. I recommend him. thank you Khalid.
$100-$200
Price
5 days
Duration
Helpful?V 
vipstore_

United Kingdom
thanks sir
$200-$400
Price
3 days
Duration
Helpful?D 
davidcopper346

United Kingdom
Ongoing collaborationexcellebt JS work
$50
Price
1 day
Duration
Helpful?D 
davidcopper346

United Kingdom
Ongoing collaborationExcellent UI work
$50
Price
1 day
Duration
Helpful?
9 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
V 
vipstore_

United Kingdom
Order Canceled
This is very disappointing experience. The delivery and system were not working properly and caused serious issues on my side. The website became unstable and even admin access stopped working after updates. Communication was not clear and multiple problems were left unresolved. Overall, the quality...
$400-$600
Price
8 days
Duration
K 
Seller's Response
Helpful?A arnaldoalves26

Brazil
An excellent and experienced professional. Agile development; clear and concise documentation and code. He masters the latest technologies and applies them to the project. He quickly grasps the scope and objectives. Excellent value for money. I recommend him. thank you Khalid.
$100-$200
Price
5 days
Duration
Helpful?V 
vipstore_

United Kingdom
thanks sir
$200-$400
Price
3 days
Duration
Helpful?D 
davidcopper346

United Kingdom
Ongoing collaborationexcellebt JS work
$50
Price
1 day
Duration
Helpful?D 
davidcopper346

United Kingdom
Ongoing collaborationExcellent UI work
$50
Price
1 day
Duration
Helpful?

