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Fiverr Pro
English
$
USD
I will build a full stack mern or nextjs web application for your saas or startup
Fayaz
5.0
5.0
About this gig
Are you building a SaaS product, startup MVP, or web platform and need a developer who ships clean, scalable code not just something that barely works?
I have been building production-grade MERN and Next.js applications since 2018. Over 40 projects delivered. Real users. Real scale
WHAT I BUILD
SaaS dashboards and multi-tenant web apps
Next.js 14 full stack applications (App Router)
React frontends with TypeScript and Tailwind CSS
Node.js and Express REST APIs
MongoDB and PostgreSQL databases
Authentication systems (JWT, NextAuth, OAuth)
Stripe payment integration
Third-party API integrations
Cloud deployment (Vercel, AWS, Railway)
WHY CLIENTS CHOOSE ME
Clean, documented, production-ready code not tutorial-level work
TypeScript by default for type safety and maintainability
I communicate daily and provide progress updates
I do not disappear after delivery support is included
I treat your product like my own
WHAT I DO NOT DO
WordPress or Wix sites (I build custom apps only)
Vague projects with no clear requirements
Unrealistic 24-hour deadlines for complex apps
HOW TO GET STARTED
Message me before ordering. Share your idea, requirements or Figma designs if possible
Get to know Fayaz
Fayaz
MERN and Next Engineer, AI and LLM Integration, SaaS and FinTech
- FromItaly
- Member sinceNov 2018
- Avg. response time1 hour
- Last delivery3 years
Languages
English, Urdu, French, Italian
Since 2018, I've shipped 40+ production web apps for SaaS, FinTech, and AI-first products.
Stack: React, Next.js 14, Node.js, TypeScript, MongoDB. I also specialize in AI/LLM integration, custom RAG pipelines, GPT-4 features, LangChain agents, and vector search (Pinecone, Weaviate).
I build: SaaS platforms, REST APIs, RAG chatbots, AI-powered tools, and FinTech dashboards.
Clean code. Daily communication. Deadlines respected.
Message me with your project, I reply within a few hours.
FAQ
Do you write clean, production-ready code or just make it work?
Always production-ready. I use TypeScript, follow component architecture best practices, write modular and reusable code, and include comments on complex logic. You will be able to hand this code to any developer and they will understand it immediately.
What do you need from me to get started?
A clear description of what you want to build, any designs or wireframes you have (Figma, screenshots, or even hand sketches), your preferred tech stack if you have one, and any existing codebase if this is an extension of an existing project.
Can you work on an existing codebase?
Yes. I regularly join ongoing projects, fix bugs, add features, or refactor code. Share the repository details and I will review before we agree on scope and price.
Do you offer ongoing support after delivery?
Every package includes 7 days of post-delivery support for bug fixes. For ongoing monthly maintenance or feature development, message me and we can discuss a custom retainer arrangement.
Will I own the full source code?
Yes. Full source code ownership is transferred to you on delivery. No licensing fees, no restrictions. It is your product.
Reviews
6 reviews for this Gig
| (6) | ||
| (0) | ||
| (0) | ||
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| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
T thomasdewitt
Repeat Client
United States
As always, very helpful and fast delivery.
Helpful?T thomasdewitt
Repeat Client
United States
Very quick and fast to respond. Even helped troubleshoot problems on my end. Would recommend.
Helpful?H heavyylungs
Repeat Client
United States
Always helps me :D
Helpful?T thomasdewitt
Repeat Client
United States
Very prompt and an expert in his field
Helpful?B brandao156
Repeat Client
United States
Excellent.
F 
Seller's Response
Helpful?
Reviews
6 reviews for this Gig
| (6) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
T thomasdewitt
Repeat Client
United States
As always, very helpful and fast delivery.
Helpful?T thomasdewitt
Repeat Client
United States
Very quick and fast to respond. Even helped troubleshoot problems on my end. Would recommend.
Helpful?H heavyylungs
Repeat Client
United States
Always helps me :D
Helpful?T thomasdewitt
Repeat Client
United States
Very prompt and an expert in his field
Helpful?B brandao156
Repeat Client
United States
Excellent.
F Seller's Response
Helpful?
