Kushagra User

I built an offline-first Android POS billing and thermal printing system using React Native and SQLite, supporting inventory, orders, discounts, GST, transactions, and CSV/JSON backup restoration.

I integrated USB and Bluetooth ESC/POS receipt printing with automatic printing after order confirmation, manual bill reprinting, and database update logic that preserves user-created inventory and transaction data.

I also built a modern blogging platform with Markdown editing, personalised and global feeds, nested comments, JWT and Google OAuth authentication, and full CRUD capabilities. I managed its Google Search Console and SEO metadata to index unsund.in on Google’s first page.

Through GEEP, I developed a gamified green education platform with role-based learning, quizzes, eco-task submissions, badge rewards, teacher analytics, email notifications, and an admin approval workflow.