I will develop full stack ai saas web application with nextjs openai claude stripe


Level 1
Gig Summary
About this gig
Hi! I'm mahdi, co-owner of a 7 person product team that builds and runs its own SaaS products.
Want a modern AI SaaS web app like Notion AI, ChatGPT or Jasper?
I'll design, develop and deploy it with Next.js, TypeScript and AI APIs like OpenAI, Gemini, Claude or Grok: secure, scalable, fast and ready for launch.
Why me?
- Proven: our multi tenant SaaS runs for 350+ schools, with an Android app and an AI helpline assistant on Gemini
- Real products: POS and ERP, hospital and pharmacy SaaS used by 600+ businesses
- Quality: clean, scalable, production ready code
- Modern tech: Next.js, AI SDK, Stripe, LangChain, AI agents and tool calling
- Advanced: custom AI agents, fine tuning, MCPs, vector search and hybrid RAG
Bonus: 1 month free bug fixes
Services
- Full stack AI SaaS app with Next.js 15+
- Chatbots and assistants with OpenAI, Groq or Gemini
- RAG systems with Pinecone or your own data
- Authentication, payments and admin dashboards
- Modern UI/UX with Tailwind, ShadCN and Framer Motion
- Deployed on Vercel or AWS
Process
1. Discuss your idea (Zoom available)
2. Develop and test your app
3. Deliver the source code
4. Deploy your SaaS to production
Please message me before ordering!
Get to know Mahdi Sakib
Full Stack AI SaaS, WooCommerce, Shopify and Web App Developer
Level 1
- FromBangladesh
- Member sinceDec 2019
- Avg. response time1 hour
- Last delivery2 days
Languages
English, Hebrew, German, Dutch, Spanish, French, Italian
My Portfolio
FAQ
Do you create custom chatbots based on business documents?
Yes. I can build custom AI chatbots that understand and respond using your business documents (PDFs, CSVs, websites, or databases). This is achieved through RAG systems powered by OpenAI, Pinecone, and LangChain, tailored to your specific company data and use case.
What stack do you use?
I build using Next.js 15+, TypeScript, Prisma, PostgreSQL, LangChain, Stripe, and Tailwind/ShadCN — deployed on Vercel or AWS for scalability.
Can you connect my app to external APIs or tools?
Of course. I can integrate any third-party API or internal tool — from CRMs and analytics platforms to AI APIs and payment systems.
Can you build a complete SaaS with authentication and payments?
Absolutely. I set up Clerk, Auth.js, or Supabase for login systems, and Stripe for subscriptions or one-time payments — all fully tested and secure.
Can you include a RAG (Retrieval-Augmented Generation) system?
Yes. I can implement RAG pipelines using Pinecone, embeddings, or custom databases, enabling your app to process and query documents (PDF, CSV, websites, etc.).
Do you provide design or UI/UX work?
Yes, I include clean, responsive, and modern UI/UX design with TailwindCSS, ShadCN, and Framer Motion, ensuring a professional look and smooth experience.
Can you create AI Agents or custom workflows?
Definitely. I can develop custom AI Agents, multi-component pipelines (MCPs), and fine-tuned logic flows for advanced automation and reasoning.
Will I get the complete source code?
Yes. You’ll receive the full, well-documented source code, with clean structure and comments for future scalability or internal handover.
Do you offer deployment and hosting setup?
Yes. I handle full deployment and hosting on Vercel, AWS, or custom servers, including environment setup, database connections, and API configuration.
Do you provide post-launch support or updates?
Yes. I offer short-term support after delivery for small adjustments and guidance, and extended maintenance can be arranged upon request.
191 reviews for this Gig
| (183) | ||
| (4) | ||
| (2) | ||
| (1) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
F fynndel

Germany
Mahdi did exactly what I wanted him to do. Additional he helped me with some other questions. He knows how to build websites and which questions he need to ask to get the work done. Thank you Mahdi :)
$200-$400
Price
10 days
Duration

M 
Seller's Response
Helpful?E enzo_pichon

France
Mahdi réalise du très bon travail, je suis ravi d'avoir collaboré avec Mahdi encore merci pour le travail fournis !
$200-$400
Price
9 days
Duration

M 
Seller's Response
Helpful?S 
sarasmyth1975

United Kingdom
Always great to work with Mahdi, he helped fix some bugs, images and layout of my site.
$50
Price
12 days
Duration

M 
Seller's Response
Helpful?Y 
yousufali570

Bangladesh
At first, he overlooked some requirements and seemed to take things lightly. However, the final delivery turned out great. I’d recommend taking every project seriously from the start. Wishing you the best of luck in the future.
$100-$200
Price
9 days
Duration

M 
Seller's Response
Helpful?W 
webelitex_

Bangladesh
Mahdu did a FANTASTIC job on my website development project! His professionalism and code expertise ensured a flawless, bug-free delivery 😊. Plus, his proactive communication and timely delivery made the process smooth and enjoyable, i will work with him again. Highly recommend!
$50
Price
3 days
Duration

M 
Seller's Response
Helpful?
191 reviews for this Gig
| (183) | ||
| (4) | ||
| (2) | ||
| (1) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
F fynndel

Germany
Mahdi did exactly what I wanted him to do. Additional he helped me with some other questions. He knows how to build websites and which questions he need to ask to get the work done. Thank you Mahdi :)
$200-$400
Price
10 days
Duration

M 
Seller's Response
Helpful?E enzo_pichon

France
Mahdi réalise du très bon travail, je suis ravi d'avoir collaboré avec Mahdi encore merci pour le travail fournis !
$200-$400
Price
9 days
Duration

M 
Seller's Response
Helpful?S 
sarasmyth1975

United Kingdom
Always great to work with Mahdi, he helped fix some bugs, images and layout of my site.
$50
Price
12 days
Duration

M 
Seller's Response
Helpful?Y 
yousufali570

Bangladesh
At first, he overlooked some requirements and seemed to take things lightly. However, the final delivery turned out great. I’d recommend taking every project seriously from the start. Wishing you the best of luck in the future.
$100-$200
Price
9 days
Duration

M 
Seller's Response
Helpful?W 
webelitex_

Bangladesh
Mahdu did a FANTASTIC job on my website development project! His professionalism and code expertise ensured a flawless, bug-free delivery 😊. Plus, his proactive communication and timely delivery made the process smooth and enjoyable, i will work with him again. Highly recommend!
$50
Price
3 days
Duration

M 
Seller's Response
Helpful?

