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I will build production ai chatbot with langchain
Kumar K
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About this gig
Tired of AI chatbots that hallucinate, give wrong answers, or can't
read your documents? I build production-grade RAG chatbots that
answer ONLY from your data with source citations on every answer.
WHAT YOU GET:
- Custom RAG chatbot trained on YOUR documents (PDF, Word, text)
- LangChain + ChromaDB + Gemini/OpenAI integration
- Source citations with page numbers zero hallucinations
- Clean web UI (Streamlit) or FastAPI for your own integration
- Cloud deployment with full source code
WHY ME:
- Kaggle Expert Top 4% globally (6 Bronze Medals)
- Production AI systems live on Hugging Face Spaces
- 10+ years of product management I deliver, not just prototype
- Fast turnaround Basic in 5 days, Premium in 14 days
PERFECT FOR:
- Customer support automation
- Internal knowledge base Q&A
- Documentation chatbots
- Legal/medical/research document analysis
- E-commerce product Q&A
I've built RAG systems handling 500+ page documents with sub-second
response times. Every project ships with deployment, source code,
and post-launch support.
Have a complex chatbot need? Send me a message before ordering and
I'll confirm scope + recommend the right package.
Let's build something that actually works.
Get to know Kumar K
Kumar K
AI ML Engineer
- FromIndia
- Member sinceMay 2026
Languages
English
Most AI projects never reach production. I fix that. AI/ML Engineer specialising in agentic AI (LangGraph), RAG pipelines, prediction models (XGBoost/LightGBM/CatBoost), and deep learning — every project has a live demo and clean GitHub code.
Kaggle Expert ranked Top 4% globally with 6 Bronze Medals, including Top 0.5% in Speech Emotion Recognition. Recent work: Multi-Source Research Agent with dual-LLM resilience, RAG chatbot with zero hallucinations, ResNet18 medical imaging at 86% accuracy, bankruptcy prediction model (AUC 0.93).
10+ years of product management means I deliver.
My Portfolio
FAQ
What is RAG and why does my chatbot need it?
RAG (Retrieval-Augmented Generation) means the chatbot retrieves answers from YOUR documents instead of making things up. This eliminates hallucinations — the bot only answers from sources you provide, with page-level citations. Essential for any business chatbot where accuracy matters.
What documents can the chatbot handle?
PDF, Word (.docx), text files, CSV, and HTML. For Basic package, up to 50 pages. Standard handles 500 pages. Premium has unlimited document support. Just upload your files after ordering and I'll process them.
Which LLM do you use — OpenAI, Gemini, or something else?
I default to Google Gemini (best free tier for buyers on a budget) but can use OpenAI GPT-4, Claude, or Groq Llama based on your preference. Premium package includes multi-LLM fallback so the bot never goes down due to API quota.
Will I get the source code?
Standard and Premium packages include full commented source code with deployment guide. Basic package is a deployed solution; source code is available as a paid extra ($80).
Can you deploy the chatbot for me?
Yes. Standard deploys to Streamlit Cloud (free hosting). Premium deploys via Docker on Hugging Face Spaces or your preferred cloud (AWS, GCP, Azure) with GitHub Actions CI/CD setup.
Do you offer post-delivery support?
Premium includes 30 days of post-launch support for bugs and minor adjustments. For Basic and Standard, support is available as a paid extra ($120 for 30 days).
