AdvancedTechnical
5 min
Multi-Tenant Architecture Design
ArchitectureSaaSSecurity
Advertisement
Interview Question
How would you design a secure and scalable multi-tenant SaaS application?
Key Points to Cover
- Choose tenancy model: shared DB, schema-per-tenant, or DB-per-tenant
- Enforce strict tenant isolation at all layers
- Apply per-tenant RBAC, rate limits, and quotas
- Implement monitoring, billing, and analytics per tenant
Evaluation Rubric
Chooses an appropriate tenancy model30% weight
Ensures strong tenant isolation30% weight
Implements quotas/rate limits20% weight
Addresses monitoring/billing needs20% weight
Hints
- 💡Isolation vs efficiency is the main trade-off.
Potential Follow-up Questions
- ❓How do you migrate tenants across DBs?
- ❓What about noisy neighbor problems?
Advertisement