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Fiverr Pro
Português
$
USD
I will build your nextjs or mern stack web application
Khizar
Level 2
1 pedido na fila
5,0
5,0
O que as pessoas adoram neste freelancer
ipromise2
Estados Unidos
⭐⭐⭐⭐⭐ Outstanding Developer . Highly Recommended Working with Khizar has been an incredible experience. He took all of my ideas, concepts, and dreams for my...
avelinoccus
Estados Unidos
Professional, responsive, and easy to work with. The core Milestone 2 functionality was delivered successfully, and issues were addressed promptly. Recommended.
ipromise2
Estados Unidos
again phenomenal!! we have achieved so much on this milestone. very good progress. looking forward to the final phase. Great skillful developer.
Sobre este Serviço
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.
Conheça mais sobre Khizar
Khizar
MERN and AI Developer
Level 2
- A partir dePaquistão
- Membro desdemar. de 2025
- Responde em aprox.:1 hora
- Última entrega4 dias
Idiomas
Urdu, Hindi, Inglês
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
Meu portfólio
Perguntas frequentes
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.
Avaliações
20 avaliações deste Serviço
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Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
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Mais relevante
I 
ipromise2
Cliente recorrente
Estados Unidos
⭐⭐⭐⭐⭐ 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...
US$ 200-US$ 400
Preço
4 dias
Tempo
K 
Resposta do freelancer
Útil?A avelinoccus
Cliente recorrente
Estados Unidos
Professional, responsive, and easy to work with. The core Milestone 2 functionality was delivered successfully, and issues were addressed promptly. Recommended.
US$ 200-US$ 400
Preço
7 dias
Tempo
Útil?I ipromise2
Cliente recorrente
Estados Unidos
again phenomenal!! we have achieved so much on this milestone. very good progress. looking forward to the final phase. Great skillful developer.
US$ 200-US$ 400
Preço
2 semanas
Tempo
Útil?C 
chenai96
Cliente recorrente
Reino Unido
Fantastic, couldn’t ask for a better developer,
US$ 50-US$ 100
Preço
5 dias
Tempo
Útil?R 
ronniehudson
Cliente recorrente
Estados Unidos
thank you !
US$ 50-US$ 100
Preço
7 dias
Tempo
Útil?
Avaliações
20 avaliações deste Serviço
| (20) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
Ordenar por
Mais relevante
I ipromise2
Cliente recorrente
Estados Unidos
⭐⭐⭐⭐⭐ 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...
US$ 200-US$ 400
Preço
4 dias
Tempo
K Resposta do freelancer
Útil?A avelinoccus
Cliente recorrente
Estados Unidos
Professional, responsive, and easy to work with. The core Milestone 2 functionality was delivered successfully, and issues were addressed promptly. Recommended.
US$ 200-US$ 400
Preço
7 dias
Tempo
Útil?I ipromise2
Cliente recorrente
Estados Unidos
again phenomenal!! we have achieved so much on this milestone. very good progress. looking forward to the final phase. Great skillful developer.
US$ 200-US$ 400
Preço
2 semanas
Tempo
Útil?C chenai96
Cliente recorrente
Reino Unido
Fantastic, couldn’t ask for a better developer,
US$ 50-US$ 100
Preço
5 dias
Tempo
Útil?R ronniehudson
Cliente recorrente
Estados Unidos
thank you !
US$ 50-US$ 100
Preço
7 dias
Tempo
Útil?
