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Karim Abdulrahman
← Selected Work

SaaS / Billing System

Industrial Wastewater SaaS Platform

PHP Developer · MCWW

Overview

SaaS solution for the commercial sector to calculate industrial wastewater consumption and automate invoicing processes. Karim solely developed the platform backend and administrative dashboard.

Role

PHP Developer

Context

SaaS / Billing System at MCWW .

What I Built

  • Wastewater consumption calculation engine
  • Tariff management
  • Automated invoice generation
  • Usage-based billing
  • Reporting
  • Management tools
  • Database optimization
  • Performance optimization

Technologies

PHP Laravel MySQL Filament REST APIs SaaS Billing Systems