Scaling B2B SaaS Infrastructure Without Over-Engineering

Most B2B SaaS products don't fail because of a lack of features.

They fail because the system becomes harder and harder to change just as sales finally start working.

We recommend an architecture that treats isolation and observability as first-class citizens: clear boundaries between services, a realistic approach to multi-tenancy, and metrics that actually tell you when you're in trouble.

This doesn't require an overcomplicated microservice zoo. In many cases, a well-structured modular monolith with the right seams outperforms a rushed microservice setup.