Chandana Prabhakar

PayFlow

March 17, 2026 – Present

PayFlow is a high-performance Node.js/TypeScript payment backend. It features seamless Stripe integration with robust webhook validation, automated Puppeteer-driven PDF receipt generation, and secure AWS S3 artifact storage. Fully containerized with Docker and automated via GitHub Actions.

JavaScript-Problem-Solving

February 18, 2026 – Present

JavaScript-Problem-Solving — repository

TakeUForward-DSA

February 10, 2026 – Present

TakeUForward-DSA — repository

AI-Engineer-Core-Track

February 1, 2026 – Present

AI-Engineer-Core-Track — repository

Java-Printer

January 30, 2026 – Present

Encapsulation Printer Challenge models a real-world printer using OOP encapsulation principles. It manages toner levels with validation, tracks total pages printed, and supports duplex printing logic. Demonstrates data protection, controlled state updates, and business logic implementation in a clean, modular Java class design.

Java-Smart-Kitchen

January 30, 2026 – Present

Smart Kitchen Challenge demonstrates modeling IoT appliances using OOP composition principles. It simulates real-world smart devices like refrigerators, ovens, and coffee machines working together through structured object relationships. Focuses on clean architecture, modular design, and scalable device interaction logic.

Java-Worker-Hierarchy

January 20, 2026 – Present

Java OOP project implementing a worker hierarchy. Includes Worker, Employee, and either SalariedEmployee or HourlyEmployee classes with required attributes and methods. Demonstrates inheritance, method overriding, and polymorphism.

Java-Building-Customer-Data

January 15, 2026 – Present

Simple Java project modeling customer data with fields for name, credit limit, and email address. Demonstrates constructor usage (including no-arg constructor), encapsulation, default values, and basic object instantiation for learning OOP fundamentals.

Java-Bank-Account

January 15, 2026 – Present

Simple Java console application simulating a bank account. Supports account creation, deposits, withdrawals, balance checks, and transaction history. Demonstrates OOP (classes, encapsulation), input handling, and basic validation for financial operations.

URL-Shortener

January 12, 2026 – Present

A URL shortener converts long, hard-to-share links into short, memorable URLs. It improves link sharing, reduces clutter, and enables tracking of clicks for analytics. Common features include custom aliases, QR codes, expiration times, and redirect handling. Often used for marketing, social media, and mobile-friendly sharing.