You will get a production-ready SaaS with AI (React, Node, TypeScript)
Top Rated
Project details
I build production-ready SaaS applications with a strong focus on frontend quality, system reliability, and practical AI integration. This service is for teams who need a SaaS product that feels fast, stays maintainable, and can grow without constant rewrites.
My background includes 7+ years building and scaling SaaS platforms across EdTech, ERP, FinTech, and internal enterprise tools. I focus on clean frontend architecture using React and Next.js, paired with well-structured APIs and AI features that solve real problems, not just demos.
Whether you’re launching a new SaaS, modernizing an existing product, or adding AI-driven workflows, the goal is the same: a stable, readable codebase and a product your team can confidently maintain and extend.
I work closely with product requirements, prioritize performance and clarity, and avoid shortcuts that create problems later.
My background includes 7+ years building and scaling SaaS platforms across EdTech, ERP, FinTech, and internal enterprise tools. I focus on clean frontend architecture using React and Next.js, paired with well-structured APIs and AI features that solve real problems, not just demos.
Whether you’re launching a new SaaS, modernizing an existing product, or adding AI-driven workflows, the goal is the same: a stable, readable codebase and a product your team can confidently maintain and extend.
I work closely with product requirements, prioritize performance and clarity, and avoid shortcuts that create problems later.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$3,500
|
Advanced
$6,500
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 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
+$300
Design Customization
+$300Frequently asked questions
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BB
Brendan B.
Jun 17, 2026
Senior Fullstack Engineer (Ruby on Rails & Hotwire)
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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.
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About Hasan
Full Stack AI SaaS Developer | React, Next.js, Node.js, Ruby on Rails
100%
Job Success
Mississauga, Canada - 8:41 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:
âś” 8+ years of software development experience
âś” 100+ projects delivered
âś” 100% Job Success on Upwork
âś” Top Rated Freelancer
âś” 5,000+ hours worked on Upwork
âś” 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.
đź“© 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 & planning
We review your product goals, target users, and feature scope. I confirm technical assumptions and define a clear delivery plan.
Architecture & implementation
I build the SaaS frontend and supporting systems using React, Next.js, TypeScript, and AI integrations where they add real value. Progress is shared regularly.