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HeyAvijitRoy/README.md

👋 Hey, I’m Avijit Roy

🚀 Lecturer | AI Researcher | Cybersecurity Enthusiast | Data Analyst | Full-stack Developer
🔍 Building secure, scalable, and user-friendly solutions across web, data, and AI.

C# .NET Python NodeJS Cybersecurity AI/ML Azure Google Cloud SQL

🔨 What I Build & Explore

I bridge data, security, and applied AI to build impactful, real-world systems for education and public service.

  • Engineering for Impact: Automated verification across 10,000+ student records at CUNY using .NET, cutting manual work by 80%.
  • Secure Platforms: Built live dashboards for human trafficking intelligence, secured with OAuth2, RBAC, and audit logging.
  • Cybersecurity R&D: Privacy-first tools and secure authentication workflows.
  • Mentor & Educator: Guiding undergraduates at John Jay College in secure session design and full-stack development.
  • AI for Social Good:
    • Developing NLP-based Spanish and English writing proficiency tools (ACTFL-aligned scoring, NLP, HuggingFace).
    • Building propaganda detection models for news articles using Newspaper3k, BeautifulSoup, and OpenAI APIs.
    • Active AI researcher at Research Foundation CUNY.
  • Data Storyteller: Translating complex data into actionable insights using SQL, C#, and modern dashboards.
  • Community Contributor: Sharing daily .NET tips at #DotNetWithRoy on LinkedIn.

I believe technology should not just function — it should empower people. My work reflects that.

🔧 Tech Stack

Languages:
C# Python C++ Java SQL JavaScript HTML5 CSS3 PHP

AI & Data:
TensorFlow scikit-learn HuggingFace NLTK NLP

Frameworks & Tools:
.NET Razor Entity Framework SignalR Hangfire

Cloud & APIs:
Azure Google Cloud Google Maps API

🔑 Featured Projects

  • HashNow
    🔐 A secure, 100% client-side hash generator and verifier supporting SHA-256, SHA-1, and MD5.
    HTML5 JavaScript

  • Django Secure Single-Session Auth
    🛡️ A production-ready Django auth system preventing concurrent logins.
    Python Django

  • Article Extractor
    📰 A Chrome Extension + Flask backend to extract clean sentences from news articles.
    Python Flask NLTK

  • OneClickQR
    ⚡ Free, instant QR code generator (URLs, vCards, Wi-Fi, and more).
    JavaScript HTML5

  • JomiMapo
    🌾 Bangladeshi land measurement converter supporting 20+ traditional and modern units.
    HTML5 CSS3

  • ProChat
    💬 Self-hosted instant messenger for real-time chat in professional or casual settings.
    Node.js

🌍 Connect With Me

LinkedIn Website

📱 Find me: @HeyAvijitRoy

“I build tools that solve real problems — secure, fast, and privacy-first.”

Pinned Loading

  1. ArticleExtractor ArticleExtractor Public

    Newspaper Article Extractor

    Python

  2. PersonalDebtTracker PersonalDebtTracker Public

    Privacy-minded, mobile-first debt tracker that syncs with Firebase. Manage cards, visualize utilization, and optimize balance transfers.

    JavaScript

  3. ProChat ProChat Public

    A lightweight, self-hosted instant messaging application for real-time communication with customizable user limits, no external dependencies, and a professional yet casual interface. Perfect for wo…

    JavaScript 2

  4. HashNow HashNow Public

    A sleek, 100% client-side hash generator and verifier for SHA-256, SHA-1, and MD5. No uploads. No tracking. Just crypto clarity.

    JavaScript

  5. ChatifyNode ChatifyNode Public

    Real-time chat app built with Node.js, Express, and Socket.IO. Modern UI, emoji reactions, read receipts, and responsive design.

    JavaScript

  6. JomiMapo JomiMapo Public

    JomiMapo – A frontend-only PWA (and TWA) for instantly converting Bangladeshi land measurements (Bigha, Katha, Decimal, Shotok, etc.) to/from standard units (sq ft, sq m, Acre, Hectare), with Engli…

    JavaScript 1