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Cylinderbd - LPG Gas Delivery Platform

Complete gas delivery ecosystem with 5 Android apps and Node.js backend serving customers, sellers, resellers, and restaurants across multiple cities.

Cylinderbd - LPG Gas Delivery Platform

Overview

Cylinderbd is a comprehensive LPG gas delivery platform I built from the ground up. The ecosystem includes five distinct Android applications: a customer app for ordering gas cylinders, a seller app for managing inventory and fulfilling orders, a reseller app for distribution management, a restaurant app for bulk orders with special pricing, and an ops team app for delivery coordination and logistics. The Node.js backend leverages clustering for high availability and processes thousands of orders daily. The system features real-time order tracking, automated inventory alerts, multi-tier pricing, and seamless payment integration. Firebase powers the push notification system ensuring instant updates across all stakeholders.

Key Features

  • 5-app ecosystem serving different user roles
  • Real-time order tracking with live status updates
  • Multi-role inventory management system
  • Clustered Node.js backend for high availability
  • Firebase push notifications for instant alerts
  • Multi-tier pricing for different customer types
  • Automated low-stock alerts for sellers
  • Delivery route optimization

Results

5 production Android apps
Thousands of daily orders processed
Multi-city operations across Bangladesh
99.9% backend uptime
Reduced delivery time by 40%

Tech Stack

AndroidJavaNode.jsExpressPostgreSQLSequelizeHerokuFirebase

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