You will get Create a Production-Ready SaaS in React/Node + AI
Top Rated
Project details
I build full-stack web apps using React, Next.js, Node.js, and TypeScript that are designed for real users and real traffic.
With over 7 years of experience working on production systems, my focus is on building software that is stable, readable, and easy to extend over time. I’ve worked on SaaS products, internal tools, and customer-facing platforms across FinTech and HealthTech, where performance, data handling, and predictable behavior matter more than visual effects.
This project is a good fit if you need a full-stack JavaScript application that:
Has a clean frontend architecture using React or Next.js
Includes a reliable Node.js backend or API integration
Handles real user flows, not just static screens
Integrates AI features where they add practical value
Is built with long-term maintenance in mind
I pay close attention to how components are structured, how state flows through the app, and how frontend and backend layers communicate. When AI is part of the scope, I focus on clean, controlled integrations rather than experimental features.
You’ll receive well-structured source code, clear communication, and a system that your team can confidently build on after delivery.
With over 7 years of experience working on production systems, my focus is on building software that is stable, readable, and easy to extend over time. I’ve worked on SaaS products, internal tools, and customer-facing platforms across FinTech and HealthTech, where performance, data handling, and predictable behavior matter more than visual effects.
This project is a good fit if you need a full-stack JavaScript application that:
Has a clean frontend architecture using React or Next.js
Includes a reliable Node.js backend or API integration
Handles real user flows, not just static screens
Integrates AI features where they add practical value
Is built with long-term maintenance in mind
I pay close attention to how components are structured, how state flows through the app, and how frontend and backend layers communicate. When AI is part of the scope, I focus on clean, controlled integrations rather than experimental features.
You’ll receive well-structured source code, clear communication, and a system that your team can confidently build on after delivery.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$1,000
|
Standard
$1,750
|
Advanced
$2,750
|
|---|---|---|---|
| Delivery Time | 7 days | 10 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 3 | 6 | 10 |
Design Customization | - | ||
Content Upload | - | - | |
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$300 - $500
Additional Revision
+$200
Additional Page
(+ 1 Day)
+$300
Design Customization
(+ 1 Day)
+$300Frequently asked questions
33 reviews
(31)
(2)
(0)
(0)
(0)
This project doesn't have any reviews.
BB
Brendan B.
Jun 17, 2026
Senior Fullstack Engineer (Ruby on Rails & Hotwire)
JH
Jennifer H.
Dec 21, 2025
Full-Stack Software Engineer
We loved working with Hasan! He is a great communicator, works well as part of a team, and is a skilled Engineer. We hope to work with Hasan again soon.
KV
Karel V.
Dec 16, 2025
Full Stack Development
CZ
Chrissie Z.
Dec 3, 2025
Twinkling Treehouse Dashboard Development
AE
Adam E.
Nov 24, 2025
Ruby Maintenance Support
About Hasan
Full Stack AI SaaS Developer | React, Next.js, Node.js, Ruby on Rails
100%
Job Success
Mississauga, Canada - 8:24 am local time
Whether you're launching a new product, adding AI capabilities to an existing platform, or modernizing legacy software, I can help you take it from idea to production.
Over the past 8+ years, I've worked with founders, startups, and growing companies to build SaaS applications, internal platforms, customer portals, and AI-powered products. I've been involved in everything from early-stage MVPs to mature applications serving thousands of users.
My focus is always the same: building software that solves real business problems while keeping the codebase clean, maintainable, and easy to scale as the product grows.
What I can help with:
• AI-powered SaaS products
• SaaS MVP development
• AI chatbots and AI agents
• OpenAI, Claude, and Gemini integrations
• RAG applications and intelligent search
• Customer portals and dashboards
• Internal business tools
• API integrations and workflow automation
• Legacy application modernization
• Application performance and scalability improvements
Why clients work with me:
✔ 8+ years of software development experience
✔ 100+ projects delivered
✔ 100% Job Success on Upwork
✔ Top Rated Freelancer
✔ 5,000+ hours worked on Upwork
✔ Strong experience working directly with founders and product teams
My core technologies include:
Frontend: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS
Backend: Ruby on Rails, Node.js, Express.js, Python
AI: OpenAI, Claude, Gemini, LangChain, AI Agents, RAG, Vector Search
Database & Cloud: PostgreSQL, MongoDB, Redis, Supabase, Firebase, AWS, Docker, Vercel
Some recent work includes:
• Building AI-powered SaaS products from the ground up
• Integrating LLMs into existing SaaS platforms
• Modernizing Ruby on Rails applications with React and Next.js
• Developing customer-facing portals and internal business tools
• Improving performance and scalability for growing products
I also use modern development tools such as Cursor, Claude Code, and Codex to speed up delivery while maintaining high engineering standards and code quality.
If you're looking for a developer who can understand both the technical and product side of your business, I'd be happy to discuss your project.
📩 Send an invitation, and let's discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Hasan can start the project.
Delivery time starts when Hasan receives requirements from you.
Hasan works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements review and technical alignment
I review your requirements, designs, and technical constraints to confirm scope, stack, and approach before starting development.
Full-stack implementation
I build the React or Next.js frontend and Node.js backend (or integrate with existing APIs), focusing on performance, clarity, and reliability.