SMS Pin Verify

Platform: Android Native (Kotlin + Jetpack Compose)

Responsibilities

As a Jetpack Compose Android Developer, I led the complete design and development of this secure and feature-rich SMS verification platform. My responsibilities included:

🏗️ Architecture & Development

1. 1. 🧱 MVVM Architecture with Clean Architecture principles.
   2. ⚙️ Modular codebase using Repository, ViewModel, and Use Case layers.
   3. 🧩 Fully Jetpack Compose-based UI with dynamic components and responsive layouts.

🔐 Authentication & Security

1. 1. 🔐 Signup/Login with validation (Full Name, Username, Email, Password, Phone, Country).
   2. 🚫 IP Blocking after 3 failed login attempts.
   3. 🛡️ Google reCAPTCHA for bot protection.
   4. 🔄 Forgot Password & Password Change support.

🌍 Country & Application Flow

1. 1. 🌐 Dynamic country listing from backend.
   2. 📲 Nested applications per country with number renting/purchasing.
   3. 🔔 OTP reception via Push Notifications using Firebase Cloud Messaging.

💳 Payment Integration

1. 1. 💰 Multiple Payment Gateways:
   2. 🏦 Google Pay (fixed packages).
   3. 🪙 Binance & Bitcoin (custom amount).
   4. 💼 Real-time transaction history & balance refresh.
   5. 🔁 Safe and secure in-app transaction flow.

👤 Profile Management

1. 1. 📝 Edit Profile (Full Name, Username, Country).
   2. 🔒 Secure Password Change with validation.

📦 Publishing & Maintenance

1. 1. 🚀 Play Store deployment and release management.
   2. 🧪 Crash reporting and analytics via Firebase Crashlytics.
   3. 🧹 App performance optimization and recomposition control.

🧰 Tech Stack & Tools