High-performance URL shortener featuring a glassmorphic user dashboard, real-time analytics, timezone-aware charts, dynamic QR code generation, client-side registry search, and active/paused link controls. Built a write-through caching layer using Redis over PostgreSQL, achieving sub-millisecond redirection lookups with instant cache invalidation.

Trained a Random Forest classifier evaluating soil N-P-K levels, pH, temperature, and humidity, achieving 94.6% accuracy for crop prediction. Built an Explainable AI (XAI) driver returning factor-by-factor feature confidence scores explaining why specific crops are recommended. Integrated Llama 3 via Groq API, injecting real-time farm profiles, weather alerts, and soil metrics into interactive farmer assistant workflows.

Multi-modal inspection pipeline evaluating SMS semantics (NLP), phishing URL markers, and QR payment payloads using OpenCV. Aggregated multi-branch signals into a unified 0-100 Risk Score across 4 calibrated risk tiers (LOW, MEDIUM, HIGH, CRITICAL) under 150ms. Leveraged Llama 3 to generate human-readable fraud risk explanations and safety warnings while automatically redacting PII.

Full-stack e-commerce ecosystem consisting of a user storefront, administrative panel, and Express.js backend. Features a hands-free AI voice navigation system using the browser's native Web Speech API, Google OAuth via Firebase, dynamic multi-image uploads to Cloudinary, and secure Razorpay payment processing.

High-performance trading journal and portfolio analyzer. Offloads 100% of analytical computations directly to PostgreSQL using raw, optimized SQL queries without an ORM. Implemented cumulative equity curves and drawdown window functions, trigger-based P&L auto-computations, recursive CTE strategy rollups, and win-rate stored functions.

Spatial pathfinding visualizer running a compiled C++17 core pathfinding engine connected to a Node.js REST API gateway and a glassmorphic HTML5 Canvas client. Features A*, Dijkstra, BFS, and DFS path searches. Built a Redis caching layer to bypass compiled binary subprocess creation overhead, achieving a 10x speedup (<1.5ms response time).

Full-stack MERN application that generates production-ready resumes with AI-assisted content optimization. Built a scalable Express backend with modular controllers, JWT-secured routes, and Mongoose schemas for multi-resume storage. Integrated OpenAI for dynamic summary enhancement and ImageKit for background-free image processing with CDN delivery. Developed a Vite-powered React frontend featuring live template rendering, autosave, real-time customization, public resume links, and print-ready PDF export.

Backend service for a video hosting platform built with Node.js, Express, and MongoDB. Enables secure user authentication with JWT and HTTP-only cookies, scalable profile and watch history management, avatar/cover uploads via Cloudinary, and modular video upload infrastructure. Structured with controllers, middleware, and async error handling for production-ready REST APIs.