Engineering Portfolio

A selected record of systems I have built across security, data, desktop and web tooling, and educational technology. Each entry centers the problem it addresses and the engineering choices behind it; repository and live links are included where available.

LIMO

Local Intelligent Media Organizer. A 100% offline Windows desktop app that indexes, clusters, and auto-categorizes a photo library using local face recognition and reinforcement-learning feedback loops — no cloud, no uploads.

  • Desktop
  • Python
  • AI
  • Privacy

OneClickQR

Privacy-First QR Generator. A fully client-side QR generation platform supporting URLs, Wi-Fi, vCards, and campaign tracking. Designed for high-resolution PNG and SVG output with customizable styling, logo overlays, and UTM parameter generation — all without transmitting user data to external servers.

  • Tools
  • JavaScript
  • Privacy
  • PWA
  • Open-source

HashNow

Zero-Trust File Verifier. Privacy-first security tool that calculates hashes (MD5, SHA-256) within the browser. Eliminates server-side upload risk entirely for 100% confidentiality.

  • JavaScript
  • Security
  • Privacy
  • Tools

JomiMapo

Regional Unit Conversion PWA. A progressive web app addressing the fragmentation of regional land measurement units in South Asia. Standardizes legacy units to modern digital surveying equivalents.

  • PWA
  • JavaScript
  • Mapping
  • Open-source

PersonalDebtTracker

Privacy-Centric Planner PWA. A progressive web app designed for debt visualization. Uses Firebase/Firestore to provide secure projections and zero-knowledge budgeting without harvesting user data.

  • PWA
  • Finance
  • Flutter
  • Firebase
  • Mobile

ChatifyNode

Scalable Real-Time Engine. A clean-architecture messaging backend built with Node.js and Socket.IO. Engineered for extensibility to handle instant event delivery and low-latency communication.

  • Realtime
  • JavaScript
  • Messaging
  • Open-source

Exam Timer

Cognitive-Load Focused Proctoring Tool. A high-visibility exam time management interface designed for lecture halls. Built with a dark-mode UI to reduce eye strain and customizable warning thresholds.

  • Tools
  • Education
  • JavaScript
  • Productivity

NY DMV Guide for Bengali Learners

Bengali-Language DMV Prep Guide. Explains DMV terms, road signs, and examiner commands to help Bengali-speaking learners prepare for the NY learner permit and road test.

  • Education
  • Tools

BlitzTips

Multi-Agency Intelligence Dashboard. A secure investigation platform built at John Jay College to triage human-trafficking tips in real-time. Built with .NET Core and React to deliver live geospatial intelligence. Integrates Google Maps API, SignalR for push updates, and Hangfire for background jobs.

  • Security
  • .NET
  • API
  • Real-time
  • Azure

Django Auth System

Enterprise-Grade Session Enforcement. Django-based authentication system enforcing strict single-session policies, using GeoIP logging to flag suspicious login attempts in real-time. Ideal for secure testing environments.

  • Security
  • Authentication
  • Python
  • Open Source

Excelsior

Automated ETL Data Tool. A desktop (.NET WinForms) solution for high-volume student record matching and discrepancy resolution, vastly streamlining the ETL pipeline over manual reviews.

  • .NET
  • C#
  • SQL
  • Data
  • Tools

ArticleExtractor

NLP Data Cleanse Protocol. A specialized Python extraction engine that isolates journalistic content from noisy HTML to yield normalized datasets optimized for NLP research and sentiment analysis.

  • Python
  • NLP
  • Research
  • Data

dotnet-dailytips

Production-Ready .NET Reference. A curated knowledge base of enterprise patterns for building robust systems, including asynchronous workflows, EF query optimization, and scalable API design.

  • .NET
  • C#
  • Patterns
  • Open-source