You will get an AI agent, RAG system, or LLM Assistant using OpenAI and LangChain
Top Rated
Project details
Are you looking to build an AI-powered product that goes beyond simple chatbot demos?
I help startups and businesses build production-ready AI solutions using OpenAI, Claude, LangChain, n8n, React, Node.js, and modern AI technologies.
Whether you need an AI Agent, RAG application, automation workflow, or a full-stack AI SaaS platform, I can help turn your idea into a scalable product.
Here's how we can collaborate:
Share your idea, business challenge, or use case. From AI chatbots that answer questions from your documents to AI agents that automate repetitive tasks, I'll help design the right solution for your needs.
My expertise includes:
• AI Agents and multi-agent systems
• RAG applications and document Q&A solutions
• AI automation workflows using n8n and LLMs
• Full-stack AI SaaS applications
• REST APIs and third-party integrations
• React, Next.js, Node.js, and FastAPI development
I focus on clean architecture, scalable systems, and high-quality delivery.
Let's turn your AI idea into a production-ready solution.
I help startups and businesses build production-ready AI solutions using OpenAI, Claude, LangChain, n8n, React, Node.js, and modern AI technologies.
Whether you need an AI Agent, RAG application, automation workflow, or a full-stack AI SaaS platform, I can help turn your idea into a scalable product.
Here's how we can collaborate:
Share your idea, business challenge, or use case. From AI chatbots that answer questions from your documents to AI agents that automate repetitive tasks, I'll help design the right solution for your needs.
My expertise includes:
• AI Agents and multi-agent systems
• RAG applications and document Q&A solutions
• AI automation workflows using n8n and LLMs
• Full-stack AI SaaS applications
• REST APIs and third-party integrations
• React, Next.js, Node.js, and FastAPI development
I focus on clean architecture, scalable systems, and high-quality delivery.
Let's turn your AI idea into a production-ready solution.
AI Algorithms
AlexNet, Large Language Model, Linear Discriminant Analysis, Multilayer PerceptronAI Applications
AI Chatbot, AI Content Creation, AI Text-to-Image, AI-Generated Code, Natural Language UnderstandingAI Models
ChatGPTWhat's included
| Service Tiers |
Starter
$99
|
Standard
$499
|
Advanced
$4,999
|
|---|---|---|---|
| Delivery Time | 1 day | 10 days | 30 days |
Number of Revisions | 1 | 5 | 15 |
AI Model Integration | |||
Batch Normalization | - | - | |
Database Integration | |||
Detailed Code Comments | |||
Image Upscaling | - | - | |
MLOps | - | - | |
Model Deployment | - | - | |
Model Documentation | - | - | |
Model Monitoring | - | - | |
Model Testing & Optimization | - | - | |
Model Tuning | - | - | |
Natural Language Processing | - | - | |
NLP Tokenization | - | - | |
Pre-Training | - | - | |
Prompt Engineering | - | - | |
Setup File | - | - | |
Source Code | - | - |
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ZJ
Zeeshan J.
Oct 16, 2025
Web Developer / Designer - AI-Powered Website Optimization - Prompt Engineering Required
Abdul Rehman is excellent, he's quick at adapting and once he gets going he gets work done really efficiently. I am impressed by his skills and his ability to take on new challenges.
MR
Masrur R.
Aug 12, 2025
Website Deveopment
wL
wei L.
Jul 9, 2025
WESBITE UPDATE 06
Abdul Rehman quickly resolved one of the most challenging bugs I faced in my project. His expertise as a Full Stack Developer and methodical approach truly saved the day. He has deep knowledge of both front-end and back-end development, and his debugging skills are top-notch. Highly recommended for anyone looking for a reliable and experienced full stack web developer on Upwork!
About Hafiz
AI Engineer | AI Agents, RAG, OpenAI | Automation & Full Stack
100%
Job Success
Lahore Cantt, Pakistan - 9:59 am local time
I help startups and businesses ship production-ready AI products using OpenAI, Claude, LangChain, CrewAI, and n8n, backed by 5+ years of full-stack engineering across React, Node.js, TypeScript, and cloud infrastructure.
Over my career I have built and shipped 100+ web and AI solutions, from scalable APIs and microservices to RAG chatbots that let companies chat with their data, autonomous multi-agent systems, and AI automation workflows that cut manual work by 60–80%.
𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗜𝗺𝗽𝗮𝗰𝘁:
I help SaaS startups and growing businesses turn product usage into measurable revenue by improving onboarding, user journeys, and automation systems.
At 𝗮𝗡𝗶𝗻𝗷𝗮 𝗔𝗜, the product was generating around $5,000 MRR but struggling with user conversion and overall traction. I identified key friction points in the onboarding flow and user journey where users were dropping off before experiencing the product’s core value.
By redesigning onboarding, improving feature discovery, and optimizing the user experience, we scaled the product to $𝟮𝟱,𝟬𝟬𝟬 𝗠𝗥𝗥 𝘄𝗶𝘁𝗵𝗶𝗻 𝗷𝘂𝘀𝘁 𝟮 𝗺𝗼𝗻𝘁𝗵𝘀.
I have also built AI-powered automation systems that reduced manual operational workload by 60–80%, enabling teams to scale efficiently without increasing headcount.
My approach is focused on outcomes not just building features, but creating systems that:
* Increase conversion rates
* Reduce operational costs
* Improve user retention
* Drive sustainable revenue growth
If you are looking to optimize your product for growth and efficiency, I bring both technical execution and business-focused thinking.
𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗳𝗼𝗿 𝗰𝗹𝗶𝗲𝗻𝘁𝘀:
* AI Agents & multi-agent systems using LangChain, LangGraph, CrewAI, and AutoGen.
* RAG and chat-with-your-data solutions using OpenAI, Claude, Pinecone, Qdrant, and Weaviate.
* AI automation using n8n and LLM integrations for sales, support, and operations.
* Voice AI agents using Vapi, Retell, Twilio, Whisper, and ElevenLabs.
* Full-stack AI SaaS development using Next.js, React, Node.js, FastAPI, Supabase, PostgreSQL, and MongoDB.
* APIs, microservices, and integrations using REST, WebSockets, Stripe, and third-party APIs.
𝗠𝘆 𝗯𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱:
I started as a full-stack JavaScript developer using React, Node.js, and MongoDB, shipping production web apps for startups and enterprises. Over time, I grew into a Full Stack Software Engineer building cloud-based, AI-powered tools.
That mix means I don't just prototype AI demos. I ship clean, tested, scalable systems that hold up in production.
𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲:
* Production-grade, well-tested code and scalable solutions.
* Clear communication and reliable updates.
* A strong focus on real ROI and business outcomes.
* Full ownership from architecture and development through deployment and DevOps/CI-CD.
Let's turn your AI idea into a working product. Send me a message with your project details and I will reply with a clear approach and next steps.
Steps for completing your project
After purchasing the project, send requirements so Hafiz can start the project.
Delivery time starts when Hafiz receives requirements from you.
Hafiz works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & Planning
I'll review your requirements, understand your business goals, and define the best technical approach for your AI solution.