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shubhrat12/README.md

๐Ÿ‘‹ Hi, I'm Ashruj Gautam

๐ŸŽ“ Master's in CS @ University at Buffalo ย ย |ย ย  ๐Ÿค– AI/ML Enthusiast & SWE Explorer
๐Ÿ”— Email โ€ข LinkedIn

I build intelligent systems โ€” from scientific RAG pipelines to medical diagnostics,
and love turning deep learning + Software engineering into real-world applications.


๐Ÿง  About Me

  • ๐Ÿš€ I enjoy building production-grade AI systems and developer-focused tools with measurable real-world impact
  • ๐Ÿ’ก Passionate about the intersection of LLMs, RAG, multimodal learning, and software engineering
  • ๐Ÿงฐ Equally confident in training deep models or scaling fast APIs and databases
  • ๐Ÿ’ผ Open to roles in: AI/ML Engineering, Fullstack Development, Software Engineering, and Applied Research
  • ๐Ÿ“ซ Reach out:

๐Ÿš€ Highlighted Projects

๐Ÿ”ฌ HireSphere

Built a full-stack job search management platform with AI-driven resume analysis (Llama 3.3 70B via Groq), ATS optimization, keyword gap detection, and a Chrome Extension to clip job listings directly from LinkedIn and Indeed.

  • ๐Ÿ’ก Built with FastAPI, React, PostgreSQL, and Llama 3.3 70B via Groq API
  • ๐Ÿ”— Includes a Chrome Extension (Manifest V3) for one-click job clipping from LinkedIn & Indeed
  • ๐Ÿ“Š AI analysis delivers match scores, missing keywords, ATS tips, and a rewritten resume summary

๐Ÿ”ฌ LinkForge

Built a high-performance URL shortening service with single-digit millisecond redirects, async click analytics, and geo/device parsing โ€” engineered to handle massive traffic without blocking the Node.js event loop.

  • ๐Ÿ’ก Built with Node.js, Express, PostgreSQL, Redis, BullMQ, and React (Vite + Tailwind)
  • โšก Decoupled redirect and analytics paths using a fire-and-forget BullMQ worker queue for non-blocking, high-volume click tracking.
  • ๐Ÿ› ๏ธ Conquered real-world engineering challenges, including cache data mismatches, BullMQ connection clashes, and aggressive browser caching.

Built an advanced Retrieval-Augmented Generation system for scientific PDFs โ€” integrating section classification, citation graph analytics, figure detection, and local LLM generation (Mistral 7B).

  • ๐Ÿ’ก Used Grobid, LayoutLM, ChromaDB, and fine-tuned BERT
  • ๐Ÿ”— Full hybrid vector + keyword retrieval system with prompt optimization
  • ๐Ÿ“š F1 Score: 99.54% (Reference Parsing), 79.94% (Section Classification)

๐Ÿฅ MediFusiion-AI

AI diagnostic system combining X-ray imaging, clinical NLP, and tabular risk analytics into a unified medical assistant with prescription guidance.

  • ๐Ÿฉป DenseNet121 (CheXpert) + BioBERT + MLP Ensemble (Kidney, Heart, Diabetes)
  • ๐Ÿค– Integrated with LLaMA for contextual recommendations
  • ๐Ÿ’ป Packaged with PyQt5 GUI and local data fusion

Production-grade PostgreSQL analytics engine with stored procedures, triggers, indexing, and planned LLM augmentation for feedback analysis.

  • ๐Ÿง  11+ table schema, optimized queries, and stored functions in PL/pgSQL
  • ๐Ÿ“ˆ Real-time business metrics: customer behavior, delays, seller ranks
  • ๐Ÿง  Extending with Zephyr LLM to auto-summarize trends & complaints

Custom YOLO variant optimized for occluded fruit detection in retail scenarios. Compared performance against SSD, Faster R-CNN.

  • ๐Ÿ–ผ๏ธ Trained on MinneApple + COCO with resolution-aware tuning
  • ๐Ÿš€ Real-time object detection via optimized bounding box anchors

Built a semantic image search engine that lets users query with text or images and returns top-matching results using precomputed embeddings.

  • ๐Ÿง  Uses OpenAI CLIP + FAISS for vector similarity
  • ๐Ÿ–ผ๏ธ Visual & text-to-image search in real-time

๐Ÿ› ๏ธ Languages & Tools

Languages:
Python C++ SQL Java

Frameworks & APIs:
FastAPI Flask Streamlit React Node.js

AI & ML:
PyTorch TensorFlow HuggingFace LangChain ChromaDB

Data & Infra:
PostgreSQL MongoDB Docker Git GitHub


โ€œCode is the closest thing we have to magic โ€” I just make sure mine solves the right problems.โ€

Pinned Loading

  1. ResearchRAG-End-to-End-Scientific-Research-Assistant-using-RAG ResearchRAG-End-to-End-Scientific-Research-Assistant-using-RAG Public

    A modular RAG pipeline for scientific QA, featuring structured PDF parsing, custom NLP models, citation analytics, and hybrid retrieval over 1000+ chunks. Powered by local Mistral 7B for fast, offlโ€ฆ

    Python

  2. Hiresphere Hiresphere Public

    A full-stack web app for AI-powered job application tracking. Compared keyword, semantic, and LLM-based scoring; built a hybrid Groq analysis engine for resume-job matching using FastAPI and Postgrโ€ฆ

    Python

  3. InsightCart-AI InsightCart-AI Public

    InsightEdge is a PostgreSQL-based e-commerce analytics system enhanced with LLM-powered feedback analysis. It combines SQL, PL/pgSQL, and fine-tuned LLMs to extract insights from structured data anโ€ฆ

    Python

  4. Linkforge Linkforge Public

    A high-performance URL shortener & real-time analytics platform built with React, Node, Postgres & Redis. It uses an async, event-driven architecture with BullMQ to guarantee single-digit millisecoโ€ฆ

    JavaScript

  5. MediFusion-AI MediFusion-AI Public

    A medical diagnostic AI system combining chest X-ray analysis (DenseNet121: 0.95 F1, 0.97 AUC), medical text interpretation (BioBERT: 0.87 F1, 0.99 AUC), and specialized disease classifiers (Kidneyโ€ฆ

    Python

  6. PulseChat PulseChat Public

    PulseChat is an open-source, full-stack messaging application powered by Node.js and Socket.IO. Every message, every presence update, every keystroke indicator โ€” delivered the moment it happens. Noโ€ฆ

    CSS