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$
USD
I will build your full stack web app with react angular node mern or mean
Chirag Gupta
5.0
5.0
Gig Summary
About this gig
Looking for a reliable full-stack developer to build, improve, or scale your web application?
With 6+ years of software engineering experience, 40+ reviews, and a 100% 5-star record, I build production-ready web applications with clean architecture, reliable backend systems, and polished user experiences.
I work with React, Angular, Node.js, Express, MongoDB, MERN, and MEAN to develop everything from MVPs to complex business platforms.
What I can help with:
- Full-stack web application development
- React & Angular frontends
- Node.js / Express APIs
- MongoDB database design & optimization
- Authentication & user roles
- Payment integrations
- Third-party APIs
- SaaS & business platforms
- AI / LLM features, RAG & intelligent workflows
- Bug fixing, performance & security improvements
- Cloud deployment & production setup
I focus on maintainable code, scalability, performance, and real-world production qualitynot just making the application work.
Post-delivery support is included with every package.
Have an existing application or a new idea? Message me before ordering so I can recommend the right scope and package.
Get to know Chirag Gupta
Chirag Gupta
Full Stack and AI Engineer
- FromIndia
- Member sinceJul 2020
- Avg. response time1 hour
- Last delivery1 year
Languages
Hindi, English
Need a developer who can take ownership—not just complete tasks?
I help startups and businesses build, modernize and scale web, mobile and AI products from idea to production.
6+ years of experience • 40+ reviews • 100% 5-star record • Full-Stack + AI
Angular, React, React Native, Node.js, MongoDB, LLMs, RAG, AI agents, vector search, tool calling, LangGraph & MCP.
You get clean architecture, clear communication and production-ready work—not code that creates more problems later.
Building from scratch, upgrading a legacy app or adding AI? Send me your goal.
My Portfolio
FAQ
Can you work on an existing web application?
Yes. I can fix bugs, add new features, improve performance, refactor code, upgrade dependencies, and extend existing React, Angular, Node.js, MERN, or MEAN applications.
Can you build a complete web application from scratch?
Yes. I can handle the full development process, including frontend, backend APIs, database, authentication, integrations, and deployment.
Do you provide both frontend and backend development?
Yes. I work across the full stack using React or Angular for frontend development and Node.js, Express, and MongoDB for backend systems.
Can you add AI features to my application?
Yes. I can integrate AI/LLM features such as chatbots, RAG, intelligent search, content generation, structured workflows, and APIs from providers like OpenAI, Claude, and Gemini.
Will you deploy the application?
Yes. Deployment and production setup can be included depending on the selected package and project scope.
Do you provide support after delivery?
Yes. Every package includes post-delivery support. The exact support period depends on the package, typically 7–14 days.
Reviews
20 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
A 
andyshin
Australia
Ongoing collaborationChirag did an outstanding job on my website! The documentation was thorough, the attention to detail was impeccable, and the project was bug-free. Working with him was a breeze—he was polite, responsive, and delivered everything right on time. Highly recommend! 👍
$100-$200
Price
3 days
Duration
Helpful?A andyshin
Australia
Ongoing collaborationCommunication is awesome, excellent output. highly recommended.
$100-$200
Price
1 day
Duration
C 
Seller's Response
Helpful?M mmindependent
Italy
Good job, well done as usual.
$100-$200
Price
1 day
Duration
C Seller's Response
Helpful?B 
bhanuraj_parmar
India
Working with Chirag was an absolute pleasure! They crafted a custom website for my commercial business that exceeded all expectations. Communication was flawless, and the end result is a visually stunning, user-friendly site. Chirag goes above and beyond, providing valuable insights and ensuring a seamless...
$50
Price
1 day
Duration
C Seller's Response
Helpful?R remyaraj28
United States
Ongoing collaborationWorking with Chirag is always a pleasure. As always got my deliverables on time and of quality. Looking forward to work with him again. Thanks Chirag!
$100-$200
Price
1 day
Duration
C Seller's Response
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
A andyshin
Australia
Ongoing collaborationChirag did an outstanding job on my website! The documentation was thorough, the attention to detail was impeccable, and the project was bug-free. Working with him was a breeze—he was polite, responsive, and delivered everything right on time. Highly recommend! 👍
$100-$200
Price
3 days
Duration
Helpful?A andyshin
Australia
Ongoing collaborationCommunication is awesome, excellent output. highly recommended.
$100-$200
Price
1 day
Duration
C Seller's Response
Helpful?M mmindependent
Italy
Good job, well done as usual.
$100-$200
Price
1 day
Duration
C Seller's Response
Helpful?B bhanuraj_parmar
India
Working with Chirag was an absolute pleasure! They crafted a custom website for my commercial business that exceeded all expectations. Communication was flawless, and the end result is a visually stunning, user-friendly site. Chirag goes above and beyond, providing valuable insights and ensuring a seamless...
$50
Price
1 day
Duration
C Seller's Response
Helpful?R remyaraj28
United States
Ongoing collaborationWorking with Chirag is always a pleasure. As always got my deliverables on time and of quality. Looking forward to work with him again. Thanks Chirag!
$100-$200
Price
1 day
Duration
C Seller's Response
Helpful?
