You will get Full Stack Web Applications with React, Next.js, FastAPI & PostgreSQL
Top Rated
Top Rated
Project details
Turn your idea into a production-ready web application with modern technologies, scalable architecture, and exceptional user experience designed for startups and growing businesses.
I develop end-to-end full stack applications using React, Next.js, FastAPI, Node.js, and PostgreSQL to build secure, scalable, and high-performance platforms from MVPs to enterprise SaaS products.
✅ Full Stack Web Application Development
✅ React and Next.js Frontend Development
✅ FastAPI and Node.js Backend Development
✅ PostgreSQL Database Design and Optimization
✅ Authentication and Role-Based Access Control
✅ REST API and Third-Party Integrations
✅ Admin Dashboards and Analytics Systems
✅ Payment Gateway Integration
✅ SaaS Platform Development
✅ Cloud Deployment and DevOps Setup
📈 Business Impact:
• Reduce development time by up to 50%
• Support 10,000+ active users
• Improve application performance by 3x–5x
• Achieve 99.9% uptime
• Handle millions of database records efficiently
• Launch MVPs in weeks instead of months
Whether you need a startup MVP, SaaS platform, marketplace, dashboard, or enterprise web application, I can deliver scalable solutions built for performance.
I develop end-to-end full stack applications using React, Next.js, FastAPI, Node.js, and PostgreSQL to build secure, scalable, and high-performance platforms from MVPs to enterprise SaaS products.
✅ Full Stack Web Application Development
✅ React and Next.js Frontend Development
✅ FastAPI and Node.js Backend Development
✅ PostgreSQL Database Design and Optimization
✅ Authentication and Role-Based Access Control
✅ REST API and Third-Party Integrations
✅ Admin Dashboards and Analytics Systems
✅ Payment Gateway Integration
✅ SaaS Platform Development
✅ Cloud Deployment and DevOps Setup
📈 Business Impact:
• Reduce development time by up to 50%
• Support 10,000+ active users
• Improve application performance by 3x–5x
• Achieve 99.9% uptime
• Handle millions of database records efficiently
• Launch MVPs in weeks instead of months
Whether you need a startup MVP, SaaS platform, marketplace, dashboard, or enterprise web application, I can deliver scalable solutions built for performance.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$499
|
Standard
$1,499
|
Advanced
$2,999
|
|---|---|---|---|
| Delivery Time | 10 days | 18 days | 20 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 4 | 8 | 10 |
Design Customization | |||
Content Upload | |||
Responsive Design | - | ||
Source Code |
Frequently asked questions
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RK
Rui K.
Aug 5, 2026
Full Stack Engineer Needed for a B2B SaaS AI Startup
Abdul took ownership of our B2B agentic AI product and helped turn it into a stable, production-ready application. He worked independently, moved quickly, and handled the full stack from AI agent workflows and backend APIs to frontend, integrations, and deployment.
He also ramped up quickly on the product, raised issues early, and suggested improvements rather than simply completing tickets. He was reliable, communicative, and easy to work with. I highly recommend Abdul to any founder looking for a full-stack AI engineer who can own a product from 0 to 1.
He also ramped up quickly on the product, raised issues early, and suggested improvements rather than simply completing tickets. He was reliable, communicative, and easy to work with. I highly recommend Abdul to any founder looking for a full-stack AI engineer who can own a product from 0 to 1.
AL
Andrew L.
May 1, 2026
AI buildout and audit
Abdul is an amazing partner to me, I’ve been working with him for a while now and he is 100% dependable, communicative… he’s managing a full build of my app and absolutely crushing it.
He fixed my AI slop that was created, and made it a real software
Thank you for making my vibe coding work, Abdul you are a gift from the IT gods
He fixed my AI slop that was created, and made it a real software
Thank you for making my vibe coding work, Abdul you are a gift from the IT gods
VH
Vaibhav H.
Oct 25, 2025
Backend Developer - Python Expert
Had an amazing experience! He was on point with every aspect of it, would hire again.
AL
Andrew L.
Sep 26, 2025
30 minute consultation
hes the goat
AL
Andrew L.
Aug 4, 2025
React + langchain dev needed to finalize firebase-connected ai app
Abdul is very dedicated, good communicator - pleasant to work with but also knows his stuff extremely well. definitely work with abdul if you get the chance!
About Abdul Hannan
AI SaaS Developer | AI Agents, RAG, FastAPI, React, Next.js
100%
Job Success
Lahore, Pakistan - 10:15 pm local time
I build AI SaaS products and AI agents end to end.
AI architecture, agent workflows, RAG, backend, frontend, databases, authentication, billing, integrations, infrastructure, and deployment.
𝗧𝗥𝗔𝗖𝗞 𝗥𝗘𝗖𝗢𝗥𝗗
• 30+ AI & SaaS products shipped
• 12 Upwork contracts
• 700+ verified development hours
• $10K+ earned on Upwork
• 100% Job Success Score
• Top Rated
• 500+ hours on a single AI SaaS engagement
• $9K+ earned from that single engagement
• 1 engineer across up to 10 layers of an AI SaaS product
One AI engagement started as a smaller buildout and grew beyond 500 hours as I took ownership across the product.
The client's words:
“He fixed my AI slop that was created, and made it a real software.”
𝗔𝗜 𝗖𝗢𝗗𝗜𝗡𝗚 𝗔𝗚𝗘𝗡𝗧
Built an autonomous coding system with 7+ core capabilities:
• Project and file generation
• File modification
• Command execution
• Persistent project state
• Live application previews
• Database-backed application generation
• GitHub and deployment workflows
The system can move from a natural-language request to generated code, a running application, database setup, and deployment workflow.
𝗔𝗜 𝗜𝗡𝗖𝗜𝗗𝗘𝗡𝗧 𝗥𝗘𝗦𝗣𝗢𝗡𝗦𝗘 𝗦𝗔𝗔𝗦
Built an AI investigation platform across 4 major log environments:
• Firewall
• EDR
• Server
• Microsoft 365
The AI correlates events, reconstructs timelines, identifies likely root causes, and generates remediation recommendations.
Investigation workflows measured in days can be reduced to minutes.
𝗔𝗜 𝗖𝗬𝗕𝗘𝗥𝗦𝗘𝗖𝗨𝗥𝗜𝗧𝗬 𝗦𝗔𝗔𝗦
Built an AI-powered cybersecurity assessment platform covering 300+ security controls.
The product includes:
• Infrastructure scanning
• AI risk analysis
• Automated compliance reporting
• Multi-tenant architecture
• Authentication and RBAC
• Subscription workflows
• Cloud deployment
𝗔𝗜 𝗕𝗨𝗦𝗜𝗡𝗘𝗦𝗦 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗖𝗘 𝗦𝗔𝗔𝗦
Built one AI intelligence layer across 4 business functions:
• Finance
• Sales
• Marketing
• Operations
The platform turns company data into conversational analysis, recommendations, business scoring, weekly priorities, and RAG-powered answers.
𝗔𝗜 𝗦𝗨𝗣𝗣𝗢𝗥𝗧 𝗔𝗚𝗘𝗡𝗧
Built 6 connected AI support workflows:
1. Ticket understanding
2. Classification
3. Priority scoring
4. Context-aware routing
5. Escalation
6. Human handoff
RAG handles knowledge retrieval while agent logic controls routing, state, escalation, and tool execution.
𝗩𝗢𝗜𝗖𝗘 𝗔𝗜 𝗔𝗚𝗘𝗡𝗧
Built a voice AI system capable of completing 5 actions inside one customer call:
1. Answer the inbound call
2. Understand customer intent
3. Check live availability
4. Book the appointment
5. Update the CRM
Built with conversational AI, Python, FastAPI, ElevenLabs, telephony integrations, and external APIs.
𝗘𝗡𝗧𝗘𝗥𝗣𝗥𝗜𝗦𝗘 𝗥𝗔𝗚 𝗦𝗔𝗔𝗦
Built document intelligence workflows combining:
• Document ingestion
• Chunking and retrieval
• Vector search
• Schema-constrained LLM outputs
• Deterministic scoring
• PostgreSQL row-level security
• Multi-tenant data isolation
• Traceable evaluation results
𝗧𝗛𝗘 𝟭𝟬 𝗟𝗔𝗬𝗘𝗥𝗦 𝗢𝗙 𝗔𝗡 𝗔𝗜 𝗦𝗔𝗔𝗦 𝗣𝗥𝗢𝗗𝗨𝗖𝗧
I can own:
1. Product architecture
2. React / Next.js frontend
3. Python / FastAPI / Node.js backend
4. PostgreSQL / Supabase / Firebase
5. OpenAI / Claude / Gemini
6. RAG and vector retrieval
7. AI agents and LangGraph workflows
8. Authentication, RBAC, and multi-tenancy
9. Billing, APIs, webhooks, and integrations
10. Docker, AWS, CI/CD, monitoring, and deployment
𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗
• AI SaaS platforms
• AI agents
• Agentic workflows
• Multi-agent systems
• RAG applications
• AI copilots
• AI support agents
• AI coding agents
• Voice AI agents
• Document intelligence SaaS
• AI business intelligence SaaS
• Enterprise AI knowledge systems
• Multi-tenant AI SaaS products
𝗖𝗢𝗥𝗘 𝗦𝗧𝗔𝗖𝗞
Python | FastAPI | React | Next.js | TypeScript | Node.js | PostgreSQL | Supabase | Redis | LangChain | LangGraph | OpenAI | Claude | RAG | Pinecone | pgvector | Docker | AWS
I approach AI SaaS from the product level: architecture, model cost, latency, security, reliability, user flows, deployment, and what should actually be automated.
For AI agents, I design the full operating system around the model: tools, memory, state, permissions, fallbacks, evaluations, observability, and human escalation.
If you're building an AI SaaS product or AI agent, send me the product idea, requirements, or current architecture.
I can take it from architecture to production.
Steps for completing your project
After purchasing the project, send requirements so Abdul Hannan can start the project.
Delivery time starts when Abdul Hannan receives requirements from you.
Abdul Hannan works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Review
I will review your business idea, feature requirements, design references, user roles, database needs, and preferred technology stack.
Application Planning
I will plan the application structure, frontend pages, backend APIs, database schema, authentication flow, and development roadmap.