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I will build a full stack ai saas mvp web app with next js and react
Sonjoy Barman
Top Rated
4.8
4.8
Gig Summary
About this gig
Have an app idea and need someone who can actually build it, not just a pretty landing page?
Hey, I'm Sonjoy. I'm a top-rated full-stack developer on Fiverr. Most of my work is Next.js apps with real features: login, dashboards, databases, and a useful AI piece (chat, generate, classify, or RAG).
I'm not here to sell you buzzwords. If you need a small MVP you can show users or investors, I can ship that. If you only need a one-page brochure site, this gig probably isn't the right fit. Tell me, and I'll point you the right way.
What you usually get:
- A working web app on Next.js + React
- Auth and a simple dashboard
- Your main feature is built properly
- One AI feature when it's in the package
- Deployed so you have a live link
- Clean source code you own after delivery
How well to work: Send me a short note with your idea and the must-have features. I'll confirm which package fits (or what's out of scope) so there are no surprises. Then I build in clear steps you can check along the way.
Good fit: startup MVPs, internal tools, AI-powered dashboards, and early SaaS products. Not a fit: logo-only work, making me rich with AI with no product idea, or endless redesign with no scope.
How it works
Here are the steps to complete your Basic package project:
- 1
Requirements We make sure I have everything I need to complete your project successfully.
- 2
Design concept I'll design a concept for your website, which we can then develop together.
- 3
Progress check We'll meet to review the status of the project and the steps required to complete it.
- 4
Final design I'll deliver the final design of your website for your approval.
- 5
Development I'll develop a fully operative website for you.
- 6
Final Review I'll deliver the final version of the website for your review.
Get to know Sonjoy Barman
Sonjoy Barman
Senior Next js Node js and AI SaaS Architect and 250 plus Apps Shipped
Top Rated
- FromBangladesh
- Member sinceOct 2020
- Avg. response time1 hour
- Last delivery1 week
Languages
English, French, German, Spanish
Hiring the wrong engineer costs months of runway. I’m a Top Rated Senior Full-Stack & AI Engineer (6+ years, 250+ live apps across the US/UK/EU, 98% retention) built for founders who need production-grade speed.
• AI & LLMs: RAG, OpenAI/Gemini, LangChain, Doc Parsing
• SaaS Stack: Next.js, React, TS, Node.js, Express, MongoDB
• Apps: React Native, Flutter
• DevOps: AWS EC2, Docker, CI/CD, 85%+ test coverage, 30–50% faster CWV
Built for SaaS founders, legacy upgrades & agencies. Don’t guess your roadmap—book a paid consultation or drop your Figma/PRD for a milestone plan today.
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Other Software Development Services I Offer
FAQ
What’s included in the MVP?
Auth, database, dashboard, your core features per package, one AI feature on Standard+, and deployment.
Is this a landing page gig?
No. Basic is a small app slice. Landing-only projects belong in a different offer.
Do you use OpenAI / Gemini / RAG?
Yes on Standard and Premium. Tell me your use case and I’ll pick the right approach.
Can you add Stripe or n8n?
Yes — Premium includes one of these, or add as an Extra.
Who owns the code?
You own the deliverables after order completion.
What do you need from me to start?
Idea summary, must-have features, brand assets (optional), and API keys when AI is included.
How many revisions do you offer?
I provide revisions until you are satisfied (depending on package).
Do you provide support after delivery?
Yes. I provide limited free support after delivery for bug fixes.
How long will it take?
Depends on project complexity. Small projects: 2–5 days, large projects: discuss in inbox.
Reviews
133 reviews for this Gig
| (130) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
M mrpurpose001
United States
Sonjoy is highly professional, responsive, and attentive to customer feedback. It was a pleasure working with him, and I would gladly engage his services again in the future. I would certainly recommend him to others.
$1,000-$2,500
Price
4 weeks
Duration
Helpful?A angelaamddcouk
United Kingdom
Ongoing collaborationgood communicator, pleasure working with you. thank you.
$100-$200
Price
4 days
Duration
Helpful?W walid119
Germany
Ongoing collaborationIt was a great experience. Fast communication, professional work, and the final result was exactly what I needed. Highly recommended!
$400-$600
Price
4 weeks
Duration
Helpful?V victor_pasos
Mexico
Thank you!
$100-$200
Price
1 day
Duration
Helpful?N nickf68
France
Sonjoy is a polite and hard working front end developer who is a good communicator and fast to respond.
$600-$800
Price
21 hours
Duration
Hourly rate
Order type
Helpful?
Reviews
133 reviews for this Gig
| (130) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
M mrpurpose001
United States
Sonjoy is highly professional, responsive, and attentive to customer feedback. It was a pleasure working with him, and I would gladly engage his services again in the future. I would certainly recommend him to others.
$1,000-$2,500
Price
4 weeks
Duration
Helpful?A angelaamddcouk
United Kingdom
Ongoing collaborationgood communicator, pleasure working with you. thank you.
$100-$200
Price
4 days
Duration
Helpful?W walid119
Germany
Ongoing collaborationIt was a great experience. Fast communication, professional work, and the final result was exactly what I needed. Highly recommended!
$400-$600
Price
4 weeks
Duration
Helpful?V victor_pasos
Mexico
Thank you!
$100-$200
Price
1 day
Duration
Helpful?N nickf68
France
Sonjoy is a polite and hard working front end developer who is a good communicator and fast to respond.
$600-$800
Price
21 hours
Duration
Hourly rate
Order type
Helpful?
