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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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.
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Karel V.
Dec 16, 2025
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Armand C.
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Gret at what he does
About Hasan
Full Stack AI Engineer | React, Next, Node, TypeScript, Ruby on Rails
100%
Job Success
Mississauga, Canada - 6:54 pm local time
Whether you need to launch a fast MVP, modernize an existing product, improve performance, or integrate AI features, I focus on building reliable software that helps businesses move faster, reduce technical debt, and scale with confidence.
With 8+ years of hands-on experience, I’ve worked with founders, startups, and product teams to develop scalable SaaS platforms, full stack applications, internal tools, and AI-powered systems.
𝐖𝐡𝐚𝐭 𝐈 𝐡𝐞𝐥𝐩 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐰𝐢𝐭𝐡:
• SaaS MVP development (fast launch to production)
• Full stack JavaScript web application development
• React / Next.js frontend architecture
• Node.js / Ruby on Rails backend systems
• Python backend development and automation
• REST APIs, GraphQL, Webhooks, and third-party integrations
• AI chatbots, AI agents, and LLM integrations (ChatGPT, Claude, Gemini)
• Stripe API integrations, payment systems, and Webhooks automation
• RAG systems, vector search, and workflow automation
• Performance optimization & scalable system architecture
• Legacy application modernization (Rails → React/Node migration)
• Dashboards, admin panels, and internal tools
𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤
Frontend:
React.js, Next.js, TypeScript, JavaScript, Tailwind CSS, HTML5, CSS3
Backend:
Node.js, Express.js, Ruby on Rails, Python, REST APIs, GraphQL, Authentication (JWT, OAuth)
AI Development:
ChatGPT integrations, AI chatbots, AI agents, RAG systems, LLM applications, workflow automation, and AI-powered SaaS features using OpenAI, Claude, LangChain, and vector databases.
Databases & Infrastructure:
PostgreSQL, MySQL, MongoDB, Redis, Supabase, Firebase, Pinecone, AWS, Docker, Heroku, Vercel, CI/CD pipelines
𝐑𝐞𝐜𝐞𝐧𝐭 𝐑𝐞𝐬𝐮𝐥𝐭𝐬:
• 70+ full stack projects delivered across SaaS, FinTech, HealthTech, E-Commerce, and AI products
• Improved app performance for 10K+ daily users with 42% faster load times
• Built React / Next.js SaaS platforms with 35% faster development cycles
• Developed AI chatbots, RAG systems, and automation workflows for product efficiency
• Optimized APIs handling 1M+ daily requests while reducing infrastructure costs by 70%
• Modernized legacy Rails platforms using React, Next.js, and Node.js architectures
• Reduced eCommerce cart abandonment by 35% through frontend and UX optimization
• Increased product retention by 50% using AI-powered recommendations
• Built scalable SaaS MVPs from idea to production launch
My development workflow also uses modern AI engineering tools like Cursor, Claude, GitHub Copilot, Codex, and Python-based AI workflows to accelerate delivery, improve code quality, and reduce turnaround time without compromising scalability.
If you need a full stack developer who can help you build faster, scale smarter, modernize systems, or integrate AI into your product, feel free to send me an invite 📩.
𝐒𝐤𝐢𝐥𝐥𝐬:
#JavaScript #TypeScript #ReactJS #NextJS #NodeJS #RubyOnRails #Python #FullStackDevelopment #SaaSDevelopment #MVPDevelopment #WebApplicationDevelopment #FrontendDevelopment #BackendDevelopment #APIIntegration #RESTAPI #GraphQL #PostgreSQL #MongoDB #Redis #Supabase #TailwindCSS #AWS #Docker #CI_CD #AI #GenerativeAI #LLM #ChatGPT #OpenAI #Claude #Gemini #GitHubCopilot #Cursor #LangChain #LangGraph #LlamaIndex #RAG #AIAgents #AIChatbots #WorkflowAutomation #VectorDatabase #Pinecone #PerformanceOptimization #ScalableArchitecture
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.