Sahil Chandgadkar

AI Engineer | RAG Systems Developer | Node.js Backend Developer | FastAPI, PostgreSQL, pgvector, Ollama, AWS

About

Highly skilled AI Engineer and RAG Systems Developer with expertise in Node.js backend development, leveraging modern technologies like FastAPI, PostgreSQL, pgvector, Ollama, and AWS. Proven ability to design and implement privacy-first AI solutions, demonstrated through developing a comprehensive RAG platform incorporating hybrid retrieval, OCR, reranking, and LMS integration.

Skills

PyMuPDF

Async Python

Server-Sent Events (SSE)

JWT Authentication

System Design

Retrieval-Augmented Generation (RAG)

Large Language Models (LLMs)

FastAPI

PostgreSQL

pgvector

Vector Databases

Ollama

Prompt Engineering

Hybrid Search

BM25 Search

Reciprocal Rank Fusion (RRF)

Cross-Encoder Reranking

NLP

OCR

Tesseract OCR

AI Application Development

Projects

ILO (Intelligent Learning Oracle)

Summary

Built a fully local privacy-first RAG platform using FastAPI, PostgreSQL, pgvector and Ollama.