You will get build production RAG chatbot using LangChain, OpenAI, and vector databases


Project details
🤖 Build a RAG chatbot that can understand your documents and answer questions using your own knowledge base.
If you have documents, internal knowledge, research papers, product information, or other business data that you want to make searchable through an AI chatbot, I can build a Retrieval-Augmented Generation (RAG) solution tailored to your use case.
I’ll connect your data with an LLM using LangChain, OpenAI, and a vector database so the chatbot can retrieve relevant information before generating its response.
Depending on your requirements, the system can include:
✓ 📄 Document ingestion and processing
✓ 🔎 Semantic search and relevant context retrieval
✓ 🧠 OpenAI-powered responses
✓ 🔗 LangChain-based RAG pipeline
✓ 🗄️ Vector database integration
✓ 💬 Context-aware chatbot interface
✓ ⚙️ Custom retrieval and prompt configuration
✓ 📚 Support for your own private knowledge base
✓ 🚀 Production-focused architecture and optimization
I’ll first understand your data and use case, then structure the RAG pipeline around your requirements rather than using a one-size-fits-all setup.
If you have documents, internal knowledge, research papers, product information, or other business data that you want to make searchable through an AI chatbot, I can build a Retrieval-Augmented Generation (RAG) solution tailored to your use case.
I’ll connect your data with an LLM using LangChain, OpenAI, and a vector database so the chatbot can retrieve relevant information before generating its response.
Depending on your requirements, the system can include:
✓ 📄 Document ingestion and processing
✓ 🔎 Semantic search and relevant context retrieval
✓ 🧠 OpenAI-powered responses
✓ 🔗 LangChain-based RAG pipeline
✓ 🗄️ Vector database integration
✓ 💬 Context-aware chatbot interface
✓ ⚙️ Custom retrieval and prompt configuration
✓ 📚 Support for your own private knowledge base
✓ 🚀 Production-focused architecture and optimization
I’ll first understand your data and use case, then structure the RAG pipeline around your requirements rather than using a one-size-fits-all setup.
Database Type
MySQL, MS SQLWhat's included
| Service Tiers |
Starter
$149
|
Standard
$249
|
Advanced
$349
|
|---|---|---|---|
| Delivery Time | 4 days | 6 days | 8 days |
Number of Revisions | 1 | 2 | 3 |
Query Debugging | |||
Query Optimization | - | - | - |
Query Scheduling | - | - | - |
Query Analysis | - | - | - |
Source Code |
Frequently asked questions
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It was a real pleasure collaborating with this freelancer. Communication was clear and easy throughout, tasks were handled with care, and everything was delivered in a professional and reliable way. Collaboration was smooth and enjoyable, and the overall quality of the work met our expectations very well. A great experience overall.
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Talha did an excellent job designing my Udemy course on Azure ML. He’s professional, knowledgeable, and easy to work with. I’ll definitely hire him again for future projects.
About Mian Talha
AI Agents | LLMs | Machine Learning Engineer | Python | Data Science
100%
Job Success
Faisalabad, Pakistan - 3:51 pm local time
I work on 𝐀𝐈 𝐚𝐧𝐝 𝐦𝐚𝐜𝐡𝐢𝐧𝐞 𝐥𝐞𝐚𝐫𝐧𝐢𝐧𝐠 projects where the goal is not simply to build a model, but to solve a real problem with a solution that makes sense for the business.
From analyzing 𝒓𝒂𝒘 𝒅𝒂𝒕𝒂 and building 𝒑𝒓𝒆𝒅𝒊𝒄𝒕𝒊𝒗𝒆 𝒎𝒐𝒅𝒆𝒍𝒔 to developing 𝑨𝑰 𝒂𝒈𝒆𝒏𝒕𝒔 and 𝑳𝑳𝑴-powered applications, I focus on understanding the problem first, choosing the right approach, and building something that can actually be used.
I’ve worked on projects ranging from AI automation and production RAG systems to healthcare AI and clinical machine learning. Some examples include:
🏆 𝐒𝐞𝐥𝐞𝐜𝐭𝐞𝐝 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 & 𝐑𝐞𝐚𝐥-𝐖𝐨𝐫𝐥𝐝 𝐖𝐨𝐫𝐤:
✓ 🤖 Built an AI automation system for an Australian media client that publishes 300+ reports every week with zero human intervention.
✓ 🔎 Developed a production RAG pipeline for a US biotech client, achieving 85%+ retrieval accuracy.
✓ 🏥 Built a healthcare chatbot integrating the NCBI biomedical database for a US bioinformatics company.
✓ 🧠 Developed a clinical machine learning model achieving 97% accuracy across 1,600+ patient records.
✓ 📚 Contributed to 3 peer-reviewed research publications focused on AI for healthcare.
✓ 🐍 Published an open-source Python library on PyPI.
These projects have given me experience working with real datasets, production AI workflows, healthcare applications, research-driven machine learning, and automation systems where reliability and results matter.
A lot of AI projects start with messy data, an existing model that isn't performing well, or an idea that looks good on paper but needs the right technical direction to become a working solution.
𝑻𝒉𝒂𝒕'𝒔 𝒘𝒉𝒆𝒓𝒆 𝑰 𝒄𝒐𝒎𝒆 𝒊𝒏.
🔹 Machine Learning & Predictive Modeling
🔹 AI Agents & LLM Applications
🔹 Deep Learning & Neural Networks
🔹 Data Science & Data Analysis
🔹 Model Development & Optimization
🔹 Python-based AI Solutions
🔹 Data Visualization & Insights
𝐑𝐞𝐜𝐞𝐧𝐭 𝐰𝐨𝐫𝐤 𝐚𝐜𝐫𝐨𝐬𝐬 𝐀𝐈 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠:
🏥 𝐇𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞 & 𝐏𝐫𝐞𝐝𝐢𝐜𝐭𝐢𝐯𝐞 𝐌𝐨𝐝𝐞𝐥𝐢𝐧𝐠
Worked on predictive modeling projects in healthcare, analyzing complex datasets and developing machine learning solutions to identify patterns and generate useful predictions.
🧠 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 & 𝐃𝐞𝐞𝐩 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠
Built, trained, evaluated, and improved machine learning and deep learning models for prediction, classification, and other data-driven use cases.
🤖 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 & 𝐋𝐋𝐌𝐬
Developed AI-driven solutions using LLMs and agent-based workflows, focusing on practical applications where AI can automate tasks, process information, and improve existing workflows.
📊 𝐃𝐚𝐭𝐚 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬 & 𝐕𝐢𝐬𝐮𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧
Worked with datasets to uncover patterns, trends, and useful insights through exploratory analysis, statistical techniques, and clear data visualization.
𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐜𝐨𝐦𝐦𝐨𝐧𝐥𝐲 𝐡𝐢𝐫𝐞 𝐦𝐞 𝐟𝐨𝐫:
✓ 🤖 Building AI Agents and LLM-powered applications
✓ 🧠 Developing Machine Learning and Deep Learning models
✓ 📈 Predictive modeling, classification, and data-driven solutions
✓ 🐍 Building AI/ML solutions with Python
✓ 🔍 Exploratory Data Analysis and finding meaningful patterns in data
✓ ⚙️ Improving existing models through tuning, evaluation, and optimization
✓ 📊 Data analysis and visualization for better decision-making
✓ 🏥 Machine Learning solutions for healthcare and other data-driven use cases
✓ 🔬 Taking ML projects from data preparation and experimentation to a reliable working solution
𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 & 𝐓𝐨𝐨𝐥𝐬:
Python, Machine Learning, Deep Learning, Artificial Intelligence, AI Agents, LLMs, Data Science, Data Analysis, Predictive Modeling, TensorFlow, PyTorch, Scikit-learn, NumPy, Pandas, Matplotlib, Seaborn, R
I don't believe in using the same model or approach for every problem. Every project has different data, requirements, and goals, so I prefer to understand the use case first and then build the solution around it.
Whether you already have a dataset, 𝐚𝐧 𝐞𝐱𝐢𝐬𝐭𝐢𝐧𝐠 𝐌𝐋 𝐦𝐨𝐝𝐞𝐥 𝐭𝐡𝐚𝐭 𝐧𝐞𝐞𝐝𝐬 𝐢𝐦𝐩𝐫𝐨𝐯𝐞𝐦𝐞𝐧𝐭, 𝐨𝐫 𝐚𝐧 𝐀𝐈 𝐢𝐝𝐞𝐚 𝐭𝐡𝐚𝐭 𝐲𝐨𝐮 𝐰𝐚𝐧𝐭 𝐭𝐨 𝐭𝐮𝐫𝐧 𝐢𝐧𝐭𝐨 𝐚 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐩𝐫𝐨𝐝𝐮𝐜𝐭, I can help you move it forward.
🚀 Let's build something useful with AI.
🤝 Let's create incredible work together!
📩 I’m online and ready to talk about your project today!
NEW SKILLS
Python | Machine Learning | Artificial Intelligence | AI Agent Development | Large Language | Models (LLM) | Data Science | Deep Learning | Data Analysis | PyTorch | TensorFlow | Scikit-Learn | Pandas | NumPy | Data Visualiz
Steps for completing your project
After purchasing the project, send requirements so Mian Talha can start the project.
Delivery time starts when Mian Talha receives requirements from you.
Mian Talha works on your project following the steps below.
Revisions may occur after the delivery date.
RAG
A short description of your use case and what you want the chatbot to do.