Client Problem
The billing engine had become difficult to change, tenant reporting was inconsistent, and enterprise customers needed stronger controls around permissions, invoices, usage visibility, and audit records.
Solution
We rebuilt the billing core with tenant isolation, role-based access, usage metering, invoice workflows, reporting APIs, test automation, and compliance-aware activity logging.
Results
The product team shipped billing changes faster, customer reporting became more reliable, and the platform gained a stronger foundation for enterprise accounts.