Gcom
A comprehensive multi-vendor hyper-local e-commerce, service booking, and business directory platform designed to digitize real-world retail and hospitality ecosystems.
Project Overview
A comprehensive multi-vendor hyper-local e-commerce, service booking, and business directory platform designed to digitize real-world retail and hospitality ecosystems in Ghana.
App Overview
Mobile user experience, customer discovery, services booking, and marketplace navigation.
Architecture & Engineering Contributions
Engineered the distributed backend using Express, Node.js, and Redis.
Developed real-time chat, negotiation, and invoicing systems using WebSockets (Socket.io).
Built milestone-based payment schedules and escrow transactions integrated with Hubtel.
Created a multi-wallet ledger system with automated commissions and vendor withdrawal workflows.
Integrated Redis and BullMQ to manage background jobs like reminders and transaction checking.
Key Architectural Challenges & Solutions
Securing funds in escrow and releasing them automatically upon delivery verification.
Developed an automated Escrow state machine that locks payments in a virtual ledger, releasing payouts to vendor wallets only after a digital signature/confirmation is received from the customer.
Scaling real-time chat messages and notifications during high traffic.
Configured Socket.io with a Redis Adapter to distribute WebSocket traffic across multiple nodes, ensuring low latency.
Processing high-volume scheduled tasks like ticket scanning validation and reservation expirations.
Structured background worker queues using BullMQ to handle job retries, concurrency limits, and scheduled reminder tasks asynchronously.
Core Platform Features
Technologies & Tools
Gallery & Screenshots