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$
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I will build your nextjs or mern stack web application
Khizar
Level 2
1 order in queue
5.0
5.0
What people loved about this freelancer
ipromise2
United States
⭐⭐⭐⭐⭐ Outstanding Developer . Highly Recommended Working with Khizar has been an incredible experience. He took all of my ideas, concepts, and dreams for my...
avelinoccus
United States
Professional, responsive, and easy to work with. The core Milestone 2 functionality was delivered successfully, and issues were addressed promptly. Recommended.
ipromise2
United States
again phenomenal!! we have achieved so much on this milestone. very good progress. looking forward to the final phase. Great skillful developer.
About this gig
Are you looking for a React, Next.js, or MERN stack developer who also builds AI-powered web apps fast, clean, and production-ready? You're in the right place.
With 4+ years of experience and 10+ projects delivered, I build scalable, SEO-optimized, full-stack web apps and AI-integrated solutions for startups and growing businesses typically delivered in 3 to 7 days.
What I'll build for you:
- Full-stack web apps (React.js, Next.js, Node.js, MongoDB, PostgreSQL)
- AI-powered features (OpenAI, Claude API, LangChain, AI Agents)
- REST API development & third-party integrations (Stripe, JWT, OAuth)
- Bug fixing & performance optimization
- Deployment on Vercel or AWS
Tech Stack:
- Frontend: React.js, Next.js, Redux, Tailwind CSS
- Backend: Node.js, Express.js, FastAPI, PostgreSQL, MongoDB, Supabase
- AI: LangChain, LangGraph, OpenAI API, Claude API
- Tools: Git, Docker, CI/CD
Why clients keep coming back:
- Clean code, clear communication, on-time delivery, and real post-delivery support.
- I don't disappear after submitting work your success is my reputation.
Let's build something great. Message me and I'll respond within 1 hour.
Get to know Khizar
Khizar
MERN and AI Developer
Level 2
- FromPakistan
- Member sinceMar 2025
- Avg. response time1 hour
- Last delivery4 days
Languages
Urdu, Hindi, English
Hi, I'm Khizar, a Full-Stack MERN Developer & AI Specialist with 4+ years of experience in React.js, Next.js, Node.js, MongoDB, and AI-powered applications.
I specialize in building high-performance web apps and integrating AI solutions using LangChain, OpenAI API, LlamaIndex, and Vector Databases.
My Expertise:
✅ Full-Stack Web Development (React.js, Next.js, Node.js, Express.js, MongoDB)
✅ AI-Powered Apps & Chatbots (LangChain, FastAPI, OpenAI, RAG)
✅ API Integrations & Automation (REST, GraphQL, OpenAI API, Stripe)
✅ Performance Optimization & Debugging
My Portfolio
FAQ
Do you provide post-delivery support?
Yes! I provide 7 days of free post-delivery support to ensure everything runs smoothly.
Can you integrate OpenAI or Claude API?
Absolutely. I specialize in AI integrations including OpenAI, Claude, and LangChain-based agents.
Will the code be clean and documented?
Always. I follow best practices with detailed code comments included in every delivery.
Can you work with my existing codebase?
Yes. I'm comfortable jumping into existing projects, just share the repository and I'll review it first.
Do you sign NDAs?
Yes, I'm happy to sign an NDA before starting. Just send it over and I'll get it sorted quickly.
Reviews
20 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
I 
ipromise2
Repeat Client
United States
⭐⭐⭐⭐⭐ Outstanding Developer . Highly Recommended Working with Khizar has been an incredible experience. He took all of my ideas, concepts, and dreams for my website and turned them into a real, functioning platform. The project was highly customized and unique, requiring creative problem.solving and...
$200-$400
Price
4 days
Duration
K 
Seller's Response
Helpful?A avelinoccus
Repeat Client
United States
Professional, responsive, and easy to work with. The core Milestone 2 functionality was delivered successfully, and issues were addressed promptly. Recommended.
$200-$400
Price
7 days
Duration
Helpful?I ipromise2
Repeat Client
United States
again phenomenal!! we have achieved so much on this milestone. very good progress. looking forward to the final phase. Great skillful developer.
$200-$400
Price
2 weeks
Duration
Helpful?C 
chenai96
Repeat Client
United Kingdom
Fantastic, couldn’t ask for a better developer,
$50-$100
Price
5 days
Duration
Helpful?R 
ronniehudson
Repeat Client
United States
thank you !
$50-$100
Price
7 days
Duration
Helpful?
Reviews
20 reviews for this Gig
| (20) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
I ipromise2
Repeat Client
United States
⭐⭐⭐⭐⭐ Outstanding Developer . Highly Recommended Working with Khizar has been an incredible experience. He took all of my ideas, concepts, and dreams for my website and turned them into a real, functioning platform. The project was highly customized and unique, requiring creative problem.solving and...
$200-$400
Price
4 days
Duration
K Seller's Response
Helpful?A avelinoccus
Repeat Client
United States
Professional, responsive, and easy to work with. The core Milestone 2 functionality was delivered successfully, and issues were addressed promptly. Recommended.
$200-$400
Price
7 days
Duration
Helpful?I ipromise2
Repeat Client
United States
again phenomenal!! we have achieved so much on this milestone. very good progress. looking forward to the final phase. Great skillful developer.
$200-$400
Price
2 weeks
Duration
Helpful?C chenai96
Repeat Client
United Kingdom
Fantastic, couldn’t ask for a better developer,
$50-$100
Price
5 days
Duration
Helpful?R ronniehudson
Repeat Client
United States
thank you !
$50-$100
Price
7 days
Duration
Helpful?
