MY WORKS

🛡️ A security-first RESTful API built with Node.js, TypeScript, and PostgreSQL, implementing Role-Based Access Control (RBAC) and JWT-based authentication to enforce the principle of least privilege across 10+ administrative and user endpoints.

• ✦Optimized system performance with Redis-backed Cache-Aside pattern, achieving 90% reduction in database read latency
• ✦Engineered high-entropy Shield Key system using Bcrypt one-way hashing for zero-knowledge machine-to-machine authentication
• ✦Distributed Rate Limiting via Redis, mitigating DDoS and brute-force attacks with 99.9% service availability

♿ A full-stack accessibility auditing tool that analyzes HTML snippets or live URLs against 15+ accessibility rules (ARIA roles, alt-text, contrast), generating detailed reports in under 2 seconds.

• ✦Built a secure RESTful API using JWT for session management with MongoDB schema for storing and retrieving past audit history
• ✦Implemented comprehensive error handling with try-catch blocks and Express middleware for invalid URLs and malformed HTML
• ✦15+ accessibility rules including ARIA roles, alt-text validation, and contrast ratio checking

🏠 A full-stack accommodation booking platform inspired by Airbnb, built with the MVC pattern to manage 3+ MongoDB models ensuring clean separation of logic for listings, reviews, and user accounts.

• ✦Integrated Leaflet.js for interactive maps, rendering coordinate data for real-time location visualization
• ✦Implemented Passport.js with salted hashing and custom middleware for secure authentication and route protection
• ✦MVC architecture managing listings, reviews, and user accounts with clean separation of concerns