I will build ai chatbots and ai agents

H
harshraj277
H
harshraj277
Harsh Raj

About this gig

I build AI-powered systems that actually work in production not just demos.


What I can build for you:


RAG Chatbots Custom chatbots trained on your own documents/data using

LangChain, Pinecone, and reranking for accurate, hallucination-resistant

answers (not generic ChatGPT replies)


AI Agents Multi-step automation using LangChain/LangGraph with

tool-calling, so your agent can search, reason, and act not just chat


Machine Learning Models Prediction/classification models (XGBoost,

Random Forest) with SHAP explainability, so you understand exactly why

the model decides what it decides


API Integration Clean integration of OpenAI, Gemini, or Claude APIs

into your existing app, website, or workflow, with proper error handling


Recent work: built a medical RAG chatbot and improved answer faithfulness

from 0.75 to 0.96 through retrieval tuning and evaluation that's the

level of rigor I bring, whatever you're building.


I deliver clean, documented, working code deployed via FastAPI/Docker

or Streamlit when you need a live interface, or as source code if you're

integrating it yourself.



Get to know Harsh Raj

Harsh Raj

AI Engineer

  • FromIndia
  • Member sinceSep 2026
  • Avg. response time1 hour
  • Languages

    English, Hindi
I am a Generative AI Engineer with hands-on experience building and deploying LLM-powered, agentic AI, and RAG applications. I specialize in multi-agent workflows, tool calling, and advanced retrieval using Python, LangGraph, and FastAPI, with a focus on building reliable and scalable AI systems.

My Portfolio