SaaS / Telecom · 2021-2022
Multi-Tenant Billing SaaS for ISPs
A billing SaaS that automated invoicing and payments for 2,000+ subscribers.
- Subscribers billed
- 2,000+
- Billing & payments
- Automated
- GitHub Actions pipeline
- CI/CD
The challenge
Internet service providers were managing subscriptions, invoices and payment collection by hand. They needed a multi-tenant product where each ISP could manage its own customers, with payments and notifications handled automatically.
What I built
- Designed a multi-tenant data model isolating each ISP's customers, plans and invoices.
- Automated recurring billing and integrated SSLCommerz for online payment processing.
- Integrated GSM modules to send automated billing and payment notifications by SMS.
- Improved scalability with horizontal scaling and load distribution behind Nginx; built GitHub Actions CI/CD to cut release time.
Results
- Serving more than 2,000 subscribers with automated billing.
- Manual collection and reminder work eliminated for operators.
- Faster, safer releases through automated deployment.