You will get a custom AI SaaS web app using FastAPI and LLMs
Project details
Do you have a brilliant idea for an AI-powered SaaS product but need the technical architecture to make it a reality?
I specialize in building custom, high-performance AI web applications from the ground up. Whether you want to build an AI content generator, an intelligent data analyzer, or a specialized B2B tool, I deliver production-ready software.
What sets my service apart is the focus on robust backend architecture. I don't just write simple API wrappers; I engineer secure Python (FastAPI) backends, integrate complex LLM logic (OpenAI GPT-4o, Claude 3.5, Custom Models), and build scalable databases. Combined with a responsive frontend (React/Next.js), your users get a seamless experience.
What I Provide:
✓ End-to-end Full-Stack Development
✓ Advanced Prompt Engineering & AI Logic
✓ Secure User Authentication & Database Setup
✓ Custom API Development & LLM Integration
✓ Cloud Deployment & Containerization (Docker)
Let's transform your AI concept into a profitable, scalable SaaS product. Message me today to discuss your product roadmap!
I specialize in building custom, high-performance AI web applications from the ground up. Whether you want to build an AI content generator, an intelligent data analyzer, or a specialized B2B tool, I deliver production-ready software.
What sets my service apart is the focus on robust backend architecture. I don't just write simple API wrappers; I engineer secure Python (FastAPI) backends, integrate complex LLM logic (OpenAI GPT-4o, Claude 3.5, Custom Models), and build scalable databases. Combined with a responsive frontend (React/Next.js), your users get a seamless experience.
What I Provide:
✓ End-to-end Full-Stack Development
✓ Advanced Prompt Engineering & AI Logic
✓ Secure User Authentication & Database Setup
✓ Custom API Development & LLM Integration
✓ Cloud Deployment & Containerization (Docker)
Let's transform your AI concept into a profitable, scalable SaaS product. Message me today to discuss your product roadmap!
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$250
|
Standard
$800
|
Advanced
$1,800
|
|---|---|---|---|
| Delivery Time | 5 days | 14 days | 30 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | - | ||
Source Code |
Optional add-ons
You can add these on the next page.
Stripe Payment Integration
(+ 3 Days)
+$300
Cloud Deployment (AWS/GCP)
(+ 2 Days)
+$200Frequently asked questions
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TB
Thomas B.
Jul 27, 2026
Expert Claude API Developer (Python/MCP) for Unstructured Data Automation
Abdullah's expertise in RAG and vector databases is unmatched, the output quality was exactly what we wanted.
JP
Jeff P.
Jul 24, 2025
Assistance Needed to Unlock Upwork Freelancer Account
Perfect from A to Z
About Abdullah
AI Engineer | Multi-Agent Systems, RAG, MVPs, n8n, Claude, Python, AWS
100%
Job Success
Lahore, Pakistan - 9:42 pm local time
I help businesses turn manual, repetitive, and knowledge-heavy processes into AI-powered systems that actually run the workflow.
My work typically sits across AI agents, LLM applications, workflow automation, document intelligence, browser automation, and full-stack product development.
Some of the systems I’ve worked on include:
• AI agents that use tools, APIs, databases, and external services to complete multi-step tasks
• Document AI for extracting and processing information from PDFs, images, spreadsheets, and unstructured data
• RAG applications connected to private business knowledge and internal data
• AI workflow automation using n8n, Python, APIs, webhooks, and browser automation
• AI-powered SaaS products with complete backend, frontend, database, authentication, and deployment
• Browser automation with Playwright for workflows where APIs aren't available
• Custom AI integrations with CRMs, sales tools, email platforms, third-party APIs, and internal systems
What I bring technically
AI: Claude, OpenAI, Gemini, LangGraph, LangChain, LlamaIndex, RAG, agents, structured outputs, tool calling
Backend: Python, FastAPI, Node.js, TypeScript, PostgreSQL, Redis
Frontend: React, Next.js, Tailwind
Automation: n8n, Playwright, REST APIs, webhooks, queues, scheduled jobs
Infrastructure: AWS, GCP, Docker, Supabase, vector databases
A few examples of the problems I solve
→ Turning business documents into structured, actionable data
→ Giving an AI agent access to company knowledge and business tools
→ Automating workflows that span multiple websites and APIs
→ Replacing repetitive operational work with reliable AI automation
→ Taking an AI prototype and turning it into a production application
→ Connecting AI with existing software instead of forcing businesses to replace their stack
I’m comfortable working from a rough idea, an existing codebase, a workflow diagram, or simply a description of what currently takes your team hours to do manually.
My focus is straightforward:
Understand the workflow → design the system → build it → integrate it → make it reliable.
If you’re hiring for AI Agents, AI Automation, RAG, LLM Applications, or an AI-powered product, I can handle both the AI layer and the engineering around it.
Steps for completing your project
After purchasing the project, send requirements so Abdullah can start the project.
Delivery time starts when Abdullah receives requirements from you.
Abdullah works on your project following the steps below.
Revisions may occur after the delivery date.
System Architecture & Planning
I map out the core functionality, database schema, API endpoints, and required AI logic to ensure a solid foundation before coding begins.
Backend & AI Development
I build the secure backend infrastructure, integrate the chosen LLMs, and engineer the complex prompt pipelines for accurate AI outputs.