Customer SaaS and subscription backends
Backend development for customer software that needed tenant separation, payment automation, and reliable permissions across different account types.
Built tenant-aware backend flows so each customer account could operate independently with clean boundaries around data and permissions.
Improved response speed by profiling slow queries, adding better indexes, and tightening high-traffic API paths.
Connected subscription billing with Stripe and Noon, then protected account features with JWT, RBAC, and rate limiting.