Sanjit Kumar
Data Scientist & AI/ML Engineer

Experienced in Machine Learning, Generative AI, NLP, and LLM applications. Builds AI agents, RAG systems, and end-to-end ML pipelines using Python, LangChain, LangGraph, FastAPI, Hugging Face, MLflow, DVC, and Docker.

Generative AI & LLMs NLP & Embeddings MLOps Pipelines RAG Systems AI Agents
Available for Freelance & Full-time Remote • Based in India

Tech Stack

Full toolkit — from data pipelines and model training to deployment and production APIs.

AI / ML / GenAI

Machine Learning Deep Learning NLP Transformers LangChain LangGraph RAG AI Agents FAISS Prompt Engineering

Libraries & Frameworks

Scikit-learn PyTorch Hugging Face Pandas NumPy XGBoost LightGBM Matplotlib Plotly

Backend & APIs

Python FastAPI Django REST APIs SQL Streamlit

MLOps & DevOps

MLflow DVC Docker Git & GitHub AWS (Basic) Railway Render

About

Data Scientist with experience in predictive modeling, machine learning, NLP, and recommendation systems, and an AI/ML Engineer focused on Generative AI, RAG systems, and LLM applications. I build end-to-end pipelines — from feature engineering and model training to deploying production-ready ML applications with FastAPI and Docker.

Also the founder of csestudy247.com, a production-grade educational platform serving thousands of students.

Professional Highlights

  • 85% recommendation accuracy with BERT + FAISS on 17,000+ job postings
  • Built AI agents using LangGraph, LangChain, and RAG pipelines
  • End-to-end MLOps with MLflow, DVC, and Docker for multiple projects
  • Founder of csestudy247.com — WordPress platform + custom plugins
  • Published AI-powered Android app on Google Play Store (50+ downloads)
  • B.Tech CSE — CGPA 8.24 | Diploma CSE — CGPA 8.68
  • Certified in Data Science & Machine Learning — CampusX

Skills

A categorized view of my technical expertise — from data science and ML to Generative AI and MLOps.

🐍

Languages

Python SQL
📊

Data Science

EDA Feature Engineering Feature Selection Data Visualization Statistical Analysis Model Evaluation Cross Validation Hyperparameter Tuning
🤖

Machine Learning

Regression Classification Clustering Recommendation Systems Random Forest XGBoost LightGBM Stacking Regressor

Generative AI

LangChain LangGraph RAG AI Agents Prompt Engineering MCP Vector Databases Gemini / Ollama
🧠

Deep Learning & NLP

PyTorch Neural Networks Transformers BERT Sentence Transformers TF-IDF Hugging Face
📦

Libraries

Pandas NumPy Scikit-learn Matplotlib Plotly FAISS XGBoost LightGBM
⚙️

MLOps

MLflow DVC Docker Pipeline Orchestration Experiment Tracking
🔧

Backend & Tools

Django FastAPI REST APIs Git & GitHub VS Code Jupyter Notebook AWS (Basic)
☁️

Cloud & Deployment

AWS (Basic) Railway Render Hostinger Google Play Store

Projects

End-to-end AI and ML builds — from RAG systems and AI agents to production ML pipelines. All linked to GitHub.

Generative AI • LangGraph • RAG

Agentic Blog Generator

An autonomous AI content creation system using LangGraph, RAG, and Groq to research, draft, and publish blog posts end-to-end.

  • Multi-agent workflow orchestrated with LangGraph
  • Uses RAG for context-aware, accurate content generation
  • Powered by Groq LLM for fast inference
Python LangGraph RAG Groq
Autonomous Agents GitHub ↗

AI • NLP • Recommendation

AI-Powered Job Recommendation System

Semantic job recommendation using Sentence-BERT embeddings and FAISS for scalable candidate-job matching.

  • Processed 17,000+ job postings with BERT embeddings
  • Achieved 85% recommendation accuracy via semantic retrieval
  • Lightweight & scalable using MiniLM + FAISS
Python Django BERT FAISS
85% Accuracy GitHub ↗

GenAI • RAG • Healthcare

Medical AI Assistant

RAG-based AI medical chatbot using LangChain, FAISS vector search, and LLMs for context-aware healthcare information retrieval.

  • Retrieval-Augmented Generation for accurate medical responses
  • FAISS vector search integrated with LLM (Gemini / Ollama)
  • Conversational symptom-based question answering
Python LangChain RAG FAISS
Healthcare AI GitHub ↗

ML • Prediction • Real Estate

Prophe AI — Property Price Prediction

AI-powered real estate platform predicting property prices in Gurugram with interactive analytics and cutting-edge ML.

  • Supervised ML model for real-time property price prediction
  • Data preprocessing, feature engineering, and model evaluation
  • Deployed as a production-ready web application
Python Django Machine Learning Scikit-learn
Production-ready GitHub ↗

MLOps • ML Pipeline • Docker

Swiggy Delivery Time Prediction

End-to-end ML pipeline predicting food delivery time using traffic, weather, rider, and delivery features — fully containerized.

  • Stacking Regressor: Random Forest + LightGBM + Linear Regression
  • DVC for pipeline orchestration, MLflow for experiment tracking
  • Dockerized for consistent deployment
Python Scikit-learn MLflow DVC Docker
Full MLOps Stack GitHub ↗

NLP • Sentiment • MLOps

YouTube Comment Sentiment Analysis

End-to-end NLP pipeline for YouTube comment sentiment classification using TF-IDF, LightGBM, MLflow, and DVC.

  • TF-IDF feature extraction + LightGBM classification
  • MLflow for experiment tracking and model versioning
  • DVC for data & pipeline management
Python NLP LightGBM MLflow DVC
NLP Pipeline GitHub ↗

AI Agent • LangGraph • Data Engineering

AI Agent for Data Cleaning

AI-powered automated data cleaning system using LangGraph and LLMs for intelligent preprocessing of CSV, Excel, PostgreSQL, and REST API data.

  • LangGraph + Gemini/Ollama for automated preprocessing decisions
  • Handles missing values, duplicates, type correction, and validation
  • FastAPI backend + Streamlit UI for interactive usage
Python LangGraph FastAPI Streamlit Gemini
Agentic AI GitHub ↗

Platform • WordPress • SEO

csestudy247.com — Educational Platform

Production-grade educational platform built and maintained from 2022. Custom plugins, online assessments, and ML/web app deployments.

  • Custom plugins for online assessments and test management
  • SEO and analytics strategies for platform growth
  • Deployed ML and web apps on Railway, Render, and Hostinger
WordPress PHP MySQL SEO
Founder • 2022–Present Visit ↗

Contact

Looking to hire a Data Scientist or AI/ML Engineer? Want to collaborate on a project or build something impactful? Let's connect — I'm open to full-time roles, freelance work, and research collaborations.

+91-9304533853 Hindi & English
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