Scaling a SaaS platform requires optimization at the database query layer. As the count of tenant companies increases, database lookups can slow down significantly if index structures are not isolated.
1. Multi-Tenancy Indexing
We separate tenant IDs on core tables and build compound indexes using PostgreSQL, ensuring lookups resolve under 15ms. We also partition larger history tables to keep transaction speeds consistent.
2. Resilient Webhook Triggers
SaaS platforms rely heavily on subscription events (like billing, upgrades, and cancellations) sent from Stripe. We configure message queue handlers to prevent system failures if billing APIs time out.