I will build a custom rag pipeline for your documents and sql databases

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bharathirajac
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bharathirajac
Bharathiraja C

About this gig

Are you looking to build a powerful AI application that goes beyond standard ChatGPT? Do you want a system that securely chats with your private company documents or searches through your complex SQL code repositories to answer technical questions instantly?

I am an AI Developer specializing in Retrieval-Augmented Generation (RAG) pipelines. I bridge the gap between Large Language Models (LLMs) and your private data.

️ What I Offer:

  • Document RAG: Chat with PDFs, DOCX, CSVs, and TXT files with high accuracy and source citations.
  • Code & SQL RAG: Parsing, chunking, and vectorizing complex SQL template scripts, allowing users to ask technical questions and get exact script references.
  • Advanced Vector Search: Expertise in ChromaDB, Pinecone, FAISS, and Weaviate for semantic search.
  • Smart Text Chunking: Optimizing parent-child chunking and metadata filtering to eliminate AI hallucinations.

️ Tech Stack I Use:

  • Frameworks: LangChain, LlamaIndex, CrewAI
  • LLMs: OpenAI (GPT-4), Anthropic (Claude), Llama 3, Mistral
  • Vector Databases: Pinecone, ChromaDB, PGVector, Milvus
  • Deployment: Streamlit, Gradio, FastAPI, AWS, Docker

Why Choose Me?

  • Proven Portfolio: I have already built operational systems f

Get to know Bharathiraja C

Bharathiraja C

Data Engineer, LLM Engineer

  • FromIndia
  • Member sinceDec 2025
  • Avg. response time1 hour
  • Last delivery3 months
  • Languages

    Tamil, English
I’m a Data/AI Engineer and CRB (Customer Revenue Bridge) SME with hands-on experience designing scalable data pipelines, optimizing complex SQL logic, and building AI-powered assistants to automate analytics workflows. I specialize in converting ambiguous business requirements into clean, efficient, production-ready data models and SQL scripts. I also build LLM-powered tools (RAG systems, vector search, Streamlit apps) that assist developers in understanding, generating, and debugging SQL. What I can help you with: Snowflake, Databricks, Redshift pipelines RAG & vector database apps DBT