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HimasagarU/README.md
Himasagar Ullamgunta — ML/AI Engineer

Himasagar Ullamgunta

ML/AI Engineer  ·  Python  ·  PyTorch  ·  LangGraph  ·  FastAPI

Designing and building machine learning systems — from model training to production APIs.

GitHub   Email


  About Me

role     : ML/AI Engineer · building end-to-end intelligent systems
focus    : Agentic AI · RAG Systems · LLMs · GenAI · Multimodal Learning · Recommender Systems
domain   : Machine Learning · Deep Learning · Reinforcement Learning · NLP · Computer Vision · Generative AI
pipeline : data ingestion → feature engineering → model training → inference → REST API → production
deployed : FastAPI · Vercel · Render · Supabase · Docker
research : EEG-based attention classification · cross-subject biomarker discovery (BCI)
location : Hyderabad, Telangana, India

  Tech Stack

Languages

Python JavaScript TypeScript SQL

ML / DL / AI

PyTorch Scikit-learn HuggingFace LightGBM FAISS SigLIP

Agentic & LLM Frameworks

LangGraph LangChain Groq

Backend & APIs

FastAPI Node.js Express

Frontend

React Redux

Databases & Storage

PostgreSQL MongoDB Qdrant Supabase

Tools & Deployment

Docker GitHub Actions Render Vercel


  GitHub Stats

GitHub Streak


  Featured Projects

Agentic AI & LLM Systems

Project Description Stack
LangGraph-ReAct-Reasoning-Agent Tool-augmented reasoning agent using LangGraph ReAct loop with intent classification, multi-step reasoning, and a self-critique review pass. Supports Tavily search, Wikipedia lookup, and calculator tools. SSE streaming + FastAPI frontend. Python LangGraph LangChain Groq Tavily FastAPI
Arxiv-RAG-Assistant   Live RAG system for mechanistic interpretability research. Hybrid retrieval (dense + BM25 + RRF + reranking), intent-aware generation, full-text ArXiv paper ingestion. Python FastAPI BM25 Qdrant Llama 3

Recommender Systems & Multimodal AI

Project Description Stack
FasRec-AI-Engine   Live Production-grade fashion recommendation platform for 44k+ products. SigLIP vision embeddings, BGE text embeddings, FAISS HNSW ANN, RRF fusion, LLaMA 3.3-70B outfit styling. FastAPI + React + Supabase. SigLIP BGE FAISS LLaMA 3.3-70B FastAPI React Supabase
Simple-Arxiv-Paper-Recommender NLP prototype recommending related arXiv papers via TF-IDF and embedding-based abstract similarity. Python NLP TF-IDF
Simple-Fashion-Recommendation-System-Phase1 Content-based fashion recommender using K-Means clustering on product attributes and image features. Python K-Means

Data Engineering & ML Pipelines

Project Description Stack
Loan-Collections-Recovery-Engine End-to-end SQL + ML pipeline on the Home Credit dataset. Warehouse design (staging → dims → facts → marts), delinquency feature engineering, recovery propensity scoring with LightGBM, Power BI exports. Python PostgreSQL SQLAlchemy LightGBM scikit-learn

EEG & Signal Processing

Project Description Stack
AttentionEEG Attention classification across multimodal EEG stimuli (audio, video, text). Python MNE Scikit-learn
Modality-Invariant Biomarker Discovery Identifying stable EEG biomarkers for attention that generalize across audio, video, and text modalities. Python EEG Signal Processing

Graph Neural Networks

Project Description Stack
DbPedia Entity Classification Multiclass text classification on DBpedia-14 using GCN and GraphSAGE architectures. Python PyTorch Geometric

Computational Biology

Project Description Stack
Protein Remote Homology Detection Remote protein homolog detection via ESM-2 sequence embedding alignment and Smith-Waterman scoring. Python ESM-2

Web & Full-Stack

Project Description Stack
EstateCraft Full-stack MERN platform for property listings with Stripe payments and role-based auth. React Redux Node.js MongoDB Stripe
NourishNest Nutrition and diet planning platform with recipe database and meal tracking via Spoonacular API. Node.js Express MongoDB
Smart-Scheduler Context-aware task scheduling assistant. Python JavaScript
Smart-Pg-Review-Platform PG accommodation review and discovery platform. TypeScript

Security

Project Description Stack
CSRF Attack & Defense Demo Demonstrates CSRF vulnerability and OWASP-compliant defense mechanisms. Node.js EJS

Built with curiosity. Deployed with purpose.

Pinned Loading

  1. Arxiv-RAG-Assistant Arxiv-RAG-Assistant Public

    RAG system for mechanistic interpretability research. Hybrid retrieval (dense + BM25 + RRF + reranking), intent-aware generation, and full-text ArXiv paper ingestion. Powered by FastAPI, Qdrant & L…

    Python

  2. FasRec-AI-Engine FasRec-AI-Engine Public

    Production-grade fashion recommendation platform using SigLIP (vision) + BGE (text) embeddings, FAISS HNSW, RRF fusion, and LLaMA 3.3-70B outfit styling. FastAPI + React + Supabase. 44k+ products.

    Python 2

  3. EstateCraft EstateCraft Public

    EstateCraft: A MERN-based platform for buying, selling, and advertising properties, offering seamless interactions for admins, employees, sellers, and buyers. Secure, responsive, and built for real…

    JavaScript 1 1

  4. DbPedia-Enitity-Classification-using-GCNs-and-GraphSage DbPedia-Enitity-Classification-using-GCNs-and-GraphSage Public

    This repository presents a solution for multiclass text classification on the DBpedia-14 Ontology Classification Dataset using two advanced Graph Neural Network (GNN) architectures: Graph Convoluti…

    Jupyter Notebook

  5. AttentionEEG AttentionEEG Public

    The code and data of Attention Analysis using EEG data

    Jupyter Notebook 2

  6. NourishNest NourishNest Public

    A comprehensive nutrition and diet planning platform with recipe database, meal planning, and nutrition tracking

    EJS