My Projects

Enterprise-grade e-commerce platform built with MERN stack featuring event-driven architecture, Docker containerization, and CI/CD pipeline. Achieved 98 Lighthouse performance (desktop), 100% SEO score, and optimized images by 97% (10.5 MB → 290 KB). Implemented comprehensive security with 8 middleware layers including Helmet.js, rate limiting (6 limiters), and input sanitization. Integrated 4 production APIs: Razorpay payments, Printrove print-on-demand, Twilio OTP authentication, and Telegram bot notifications. Backend deployed on Azure Web App with MongoDB Atlas, featuring 7 database indexes for 70% faster queries, order state machine, and automated fulfillment workflow.

Secure Spring Boot REST API built entirely with GitHub Copilot CLI as the primary development assistant for a Dev.to community challenge. Demonstrates leveraging Copilot CLI from initial scaffolding through complete implementation—generating layered architecture (controller, service, repository, entity, DTOs), implementing JWT stateless authentication with HS512 signing and BCrypt hashing, configuring Spring Security filter chains with role-based access control, and systematically debugging Spring Security 403 errors. Features multi-database support (PostgreSQL production, H2 development), global exception handling, and bean validation. Achieved 76% productivity gain (8.5 hours → 2 hours) through iterative AI-assisted prompts and code generation.

Advanced backend system implementing the Transactional Outbox Pattern to solve the dual-write problem in distributed systems. Guarantees 100% reliable event delivery between microservices with automatic retry logic. Handles 100+ events/minute with <1s latency using HikariCP connection pooling. Built to understand event-driven architecture and ensure data consistency across service boundaries without message loss.

High-performance corporate identity platform built with React and TypeScript, ensuring 100% mobile responsiveness and cross-browser compatibility through rigorous UI/UX testing and modern design principles. Implemented strict type-checking and session management to reduce runtime errors and improve maintainability. Features seamless Calendly integration for client meeting scheduling and optimized for perfect Lighthouse scores.

Production-ready web platform solving the disconnect between customers and local tailors. Built to streamline custom clothing orders with real-time notifications, location-based tailor discovery within 5km radius, and dynamic measurement profiles. Implements Repository + Service Layer architecture with CSRF protection, XSS prevention, and SQL injection defense. Features automated CI/CD pipeline and handles 50+ concurrent users with <2s page load times.

Robust CLI application demonstrating evolution from JSON file storage to production-grade MySQL database. Built to understand database migration, connection pooling, and proper resource management. Implements clean layered architecture with Service-Repository pattern, HikariCP for connection pooling, and H2 in-memory database for fast integration testing. Features immutable Java Records for type safety and JVM shutdown hooks for graceful resource cleanup.

Educational authentication system built from scratch to understand core servlet concepts without high-level frameworks like Spring Boot. Implements secure user registration and login with SHA-256 password hashing, session management, and backend validation. Follows strict MVC architecture with Servlets as Controllers, JSP as Views, and POJOs as Models. Uses SLF4J for production-grade logging instead of System.out.println. Demonstrates understanding of fundamental Java web development before framework abstraction.