Full-Stack Developer | Competitive Programmer
Building scalable web applications with modern technologies
Full-stack developer with experience in building production-grade web applications, educational management systems, and desktop tools. Strong foundation in backend architecture, database design, and modern frontend frameworks. Passionate about writing clean, maintainable code and solving complex problems through competitive programming.
Currently focused on scalable system design, API architecture, and database optimization while continuously improving problem-solving skills through competitive programming platforms.
Digital Certificate Issuance & Verification System for Educational Institutions
A comprehensive full-stack platform for managing educational credentials with multi-tenant architecture and secure verification workflows.
Highlights:
- 🔐 Multi-role authentication system (Student, University, Verifier, Admin)
- 🎫 Transaction-safe serial generation with tamper-proof certificate IDs
- ✅ Two-factor verification for privacy-preserving credential checks
- 📧 Email verification with 6-digit OTP and admin approval workflow
- 🔒 Privacy controls: toggle certificate sharing and manage access requests
- 📊 12 normalized tables (3NF) with 6 optimized database views
- 🌓 Professional UI with dark mode support
Full-Stack Commerce System for Modern Bengali Jewelry & Lifestyle Brands
Production-minded e-commerce platform with complete product lifecycle management, from catalog to fulfillment and post-purchase support.
Highlights:
- 🛍️ Product discovery with advanced filters and real-time stock visibility
- 💳 Dynamic discount system with persistent cart and checkout flow
- 👤 Customer accounts with order history and saved addresses
- 📦 Order tracking with receipt generation and status updates
- 📊 Admin dashboard with inventory management and sales analytics
- ⭐ Product reviews and Q&A with admin moderation
- 🐳 Docker Compose setup for consistent development environment
Desktop Academic Performance Tracker for UIU Students
Modern Java Swing application for calculating term GPA and cumulative CGPA with support for retake courses and integrated grading scale reference.
Highlights:
- 📊 Dual calculation: term GPA and updated CGPA in one step
- 🔄 Retake course handling with proper grade replacement logic
- ➕ Dynamic course management (up to 15 courses per semester)
- 📚 Built-in grading scale reference (UIU standard)
- 🖥️ Fullscreen mode support with keyboard shortcuts
- 🔒 Zero data storage for complete privacy
- 📦 Portable Windows executable with bundled JRE
- ⚡ Building scalable full-stack applications with clean architecture
- 🏗️ Designing RESTful APIs with secure authentication and authorization
- 📊 Database modeling, normalization, and query optimization
- 🧩 Practicing competitive programming and advanced data structures
- 🐳 Exploring DevOps practices with Docker and containerization
- 🎨 Learning system design patterns and microservices architecture