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$
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I will develop a custom rag chatbot with langchain for your website
Shafin Ahmed
About this gig
Hi! This is Shafin, an AI RAG Chatbot Developer with 2+ years experience building Custom RAG Chatbots with LangChain. I help B2B and B2C businesses turn their website, PDFs, and documents into an intelligent chatbot that gives accurate, context-aware answers instead of generic responses. From lead capture to CRM integration and Whats App chatbots, I build solutions that actually understand your business. Reach out today and let's build your AI assistant!
Basic Package
- Website-trained chatbot for instant customer support.
- Accurate answers from your business content.
- Custom knowledge base tailored to your needs.
Standard Package
- Advanced RAG chatbot with a secure admin panel.
- Lead capture with mail, Google Sheets, or CRM integration.
- Built to support your sales process.
Premium Package
- Advanced RAG chatbot with CRM integration and user accounts.
- SaaS dashboard for users, data, and conversations.
- Complete deployment and setup.
Why Choose Me?
- Developed 55+ RAG Chatbots for smarter, knowledge-based support.
- Save 10+ hours weekly with automated customer support.
- Connect 3+ data sources for accurate, relevant answers.
>> FEEL FREE TO MESSAGE ME BEFORE PLACING AN ORDER <<
Get to know Shafin Ahmed
Shafin Ahmed
AI Architect Web Based Systems for B2B and B2C Enterprises
- FromBangladesh
- Member sinceOct 2026
- Avg. response time1 hour
Languages
English
Hi! This is Shafin, a Full-Stack SaaS Developer & AI Automation Specialist. With 2+ years of experience, I have built 75+ custom SaaS and web apps for B2B and B2C businesses across a wide range of industries. I have happy clients all over the world, especially in the USA. I specialize in Python, FastAPI, RAG chatbots with LangChain, n8n automation, Chrome extensions, and Lovable MVPs. Providing reliable and scalable results to every client, I came here to turn your idea into a product that drives real business growth!
My Portfolio
FAQ
What is a RAG chatbot and how is it different from a normal chatbot?
Great question unlike normal chatbots that guess, a RAG chatbot pulls real answers directly from your own documents or website, giving your customers accurate, business-specific responses every time.
What kind of data can the chatbot be trained on?
Almost anything about your website content, PDFs, FAQs, product catalogs, spreadsheets, or any custom knowledge base so your chatbot truly reflects your business.
Can the chatbot work on Whats App as well as my website?
Yes! I build it for your website and integrate it with Whats App too, using the same knowledge base, so your customers get consistent answers wherever they reach out.
Which AI models do you use to build the chatbot?
I work with OpenAI GPT, Gemini, Claude, DeepSeek, LLaMA, or Ollama through LangChain, and I'll recommend the best fit for your budget and use case.
Can the chatbot capture leads and send them to my CRM or Google Sheets?
Yes from the Standard package onward, I connect your chatbot to mail, Google Sheets, or your CRM, so every conversation turns into a potential lead automatically.
Will I get an admin panel to manage or update the chatbot later?
Yes from the Standard package onward, you get a secure admin panel so you can manage and update your chatbot yourself, anytime you need to.
Do I need to provide an OpenAI/API key, or will you provide one?
You'll provide your own API key since usage is billed to your account, and I'll guide you through setting it up so it's quick and hassle-free.
