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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Brendan B.
Jun 17, 2026
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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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Adam E.
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About Hasan
AI SaaS & MVP Full-Stack Engineer | React, Next.js, Node.js, Ruby Rail
100%
Job Success
Mississauga, Canada - 7:27 am local time
My core work includes Rails and Node.js backend development, React and Next.js frontend development, AI chatbot development, RAG applications, and OpenAI, Claude, and Gemini integrations all built as fast, maintainable, production-ready web apps that solve real business problems.
Whether you need an MVP, an internal tool, an AI-powered feature added to an existing app, or a scalable platform for thousands of users, I can help you plan, build, and ship it efficiently.
A great product isn't built by writing endless code, it's built by shipping the cleanest version of your idea to market, then scaling it seamlessly.
That's my approach: architect clean, maintainable codebases from day one, so your platform handles rapid user growth without accumulating technical debt.
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
𝐈’𝐦 𝐚 𝐠𝐫𝐞𝐚𝐭 𝐟𝐢𝐭 𝐢𝐟 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝:
✅ 𝐄𝐧𝐝-𝐭𝐨-𝐞𝐧𝐝 𝐚𝐜𝐜𝐨𝐮𝐧𝐭𝐚𝐛𝐢𝐥𝐢𝐭𝐲: I own features completely, from initial concept down to deployment.
✅ 𝐏𝐫𝐨𝐚𝐜𝐭𝐢𝐯𝐞 𝐩𝐫𝐨𝐛𝐥𝐞𝐦-𝐬𝐨𝐥𝐯𝐢𝐧𝐠: I explore the options first, then build the right solution.
✅ 𝐈𝐧𝐝𝐞𝐩𝐞𝐧𝐝𝐞𝐧𝐭 𝐞𝐱𝐞𝐜𝐮𝐭𝐢𝐨𝐧: Someone who takes rough ideas and ships fast without daily guidance.
✅ 𝐒𝐨𝐥𝐢𝐝 𝐟𝐨𝐮𝐧𝐝𝐚𝐭𝐢𝐨𝐧𝐬: Clean, reliable systems built to handle real traffic smoothly.
𝐈’𝐦 𝐍𝐎𝐓 𝐚 𝐟𝐢𝐭 𝐢𝐟 𝐲𝐨𝐮’𝐫𝐞 𝐥𝐨𝐨𝐤𝐢𝐧𝐠 𝐟𝐨𝐫:
❌ 𝐉𝐮𝐬𝐭 𝐚𝐧 𝐨𝐫𝐝𝐞𝐫-𝐭𝐚𝐤𝐞𝐫: Someone who blindly follows specs without considering the bigger picture.
❌ 𝐋𝐨𝐰-𝐭𝐫𝐮𝐬𝐭 𝐦𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Heavy hourly tracking instead of focusing on shipped results.
❌ 𝐒𝐡𝐨𝐫𝐭𝐬𝐢𝐠𝐡𝐭𝐞𝐝 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: Quick workarounds that require a complete rebuild a few months later.
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
By using modern tools like Cursor and Claude Code, I am able to speed up my development process significantly. This helps me ship features quickly without cutting corners on code cleanliness or testing.
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.
📩 Hit me up with a message or invite, let's bring this build to life! ⚡
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.