🚀 Adjunct Lecturer | AI Researcher | Cybersecurity & Digital Forensics | Data Analyst | Full-stack Developer
🔍 Building secure, privacy-preserving, and human-centered systems across AI, cybersecurity, and education.

I work at the intersection of cybersecurity, applied AI, and privacy-preserving systems — building tools and conducting research that serve education and public interest.

• Security Research: M.S. thesis on adversarial robustness of perceptual hashing systems (Claude Hawley Medal, 2026). USPTO provisional patent pending for a client-side phishing detection architecture using ONNX transformer inference.
• AI & NLP: Published research on propaganda detection (FLAIRS-39) and privacy-preserving MIS using blockchain and federated learning (ICICC 2026 Best Paper). Active NSF ACCESS-funded project on low-resource Bengali NLP and fine-tuning language models.
• Secure Platforms: Built BlitzTips — a live multi-agency intelligence dashboard for human trafficking investigations using .NET Core, React, SignalR, Hangfire, and Google Maps API, secured with OAuth2, RBAC, and audit logging.
• Engineering for Impact: Excelsior — automated ETL desktop tool that processed 10,000+ student records at CUNY, cutting manual work by 80%.
• Educator: Adjunct Lecturer at John Jay College of Criminal Justice (CUNY), guiding undergraduates in secure session design and full-stack development.
• #DotNetWithRoy: Sharing daily production-ready .NET patterns on LinkedIn and in the dotnet-dailytips repo.

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

• [MS Thesis] Adversarial Robustness of Perceptual Hashing Systems: A Unified Security Evaluation Framework — Awarded Claude Hawley Medal. John Jay College, CUNY, 2026.
• [ICICC 2026 — Best Paper] Privacy-Preserving MIS Using Blockchain, Federated Learning and Zero-Trust Models — Springer LNNS, 2026.
• [FLAIRS-39] Propasafe-Hybrid: A Text-Based Hybrid Propaganda Detection Tool — Florida AI Research Society, 2026.
• [Preprint] Structural Silence: When AI Infrastructure Fails Speakers of Underrepresented Languages — SSRN, 2026.
• [Patent Pending] Staged Client-Side Phishing Risk Assessment Using Locally Executed ONNX Transformer Inference — USPTO App. No. 63/986,762.
• [NSF ACCESS] Computational allocation (CIS260616) for low-resource Bengali NLP research — Apr 2026–Apr 2027.

Languages:

AI & Data:

Frameworks & Tools:

Cloud & APIs:

Free, no-signup tools I've built and shipped — try them directly:

• LIMO — Local Intelligent Media Organizer. 100% offline Windows desktop app that indexes, clusters, and auto-categorizes your photo library using local face recognition (HOG embeddings) and reinforcement-learning feedback loops — no cloud, no uploads. (repo)
• OneClickQR — Generate QR codes for URLs, Wi-Fi, vCards, and UTM campaigns entirely client-side — high-res PNG/SVG export, no data ever sent to a server.
• HashNow — Zero-trust file integrity checker. Generates MD5/SHA-256 hashes 100% in-browser to verify file authenticity without uploading anything.
• ChatifyNode — Real-time chat app powered by Node.js, Express, and Socket.IO, with emoji reactions, read receipts, and a responsive UI.
• JomiMapo — Offline-capable PWA that converts 20+ traditional Bangladeshi land measurement units to modern standardized equivalents.
• Personal Debt Tracker — Privacy-conscious credit card planner: visualizes utilization, FICO threshold nudges, and 0% balance-transfer optimization — all client-side via Firebase. (repo)
• Exam Timer — High-visibility lecture hall proctoring timer with dark-mode UI and customizable warning thresholds.
• NY DMV Guide for Bengali Learners — A Bengali-language guide explaining DMV terms, road signs, and examiner commands to help learners prepare for the NY learner permit and road test.

Projects that aren't public live demos — internal tools, libraries, and references:

• BlitzTips
  🛡️ Multi-Agency Intelligence Dashboard. Secure investigation platform for real-time human trafficking tip triage. .NET Core + React, SignalR, Hangfire, Google Maps API, RBAC, OAuth2.
  

• Django Auth System
  🛡️ Enterprise Session Enforcement. Production-ready Django auth system preventing concurrent logins with GeoIP monitoring.
  

• Excelsior
  📊 Automated ETL Tool. .NET WinForms desktop app for high-volume student record matching and data reconciliation at CUNY.
  

• ArticleExtractor
  📰 NLP Data Cleanse Protocol. Python extraction engine isolating journalistic content for NLP research and sentiment analysis datasets.
  

• dotnet-dailytips
  📘 Production-Ready .NET Reference. Curated enterprise patterns: async workflows, EF query optimization, scalable API design.
  

📱 Find me: @HeyAvijitRoy

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