The latest articles on DEV Community by Arif Iqbal (@syedarifiqbal). https://dev.to/syedarifiqbal https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3886639%2Faf28063f-5a82-46c6-91a5-ebc0656c90f8.jpeg https://dev.to/syedarifiqbal en Arif Iqbal Sat, 18 Apr 2026 22:50:09 +0000 https://dev.to/syedarifiqbal/multi-tenant-saas-4-database-isolation-strategies-compared-5ag1 https://dev.to/syedarifiqbal/multi-tenant-saas-4-database-isolation-strategies-compared-5ag1 <p>Multi-tenancy is one of those architectural decisions that's easy to get wrong early and expensive to fix later.</p> <p>I've implemented this across multiple enterprise SaaS products and spent a lot of time thinking through the tradeoffs. I wrote a deep-dive covering all 4 strategies:</p> <ul> <li>Schema-per-tenant </li> <li>Database-per-tenant </li> <li>Row-level security (PostgreSQL RLS)</li> <li>Shared schema with tenant_id </li> </ul> <p>With real PostgreSQL examples, performance tradeoffs, and a decision framework for picking the right one.</p> <p>Read the full post → <a href="https://syedarifiqbal.com/blog/multi-tenant-saas-isolation?utm_source=devto&amp;utm_medium=community&amp;utm_campaign=multi-tenant-sa&lt;br&gt;%0A%20%20as" rel="noopener noreferrer">https://syedarifiqbal.com/blog/multi-tenant-saas-isolation</a></p> <p>Originally published on my blog. I write about backend architecture, NestJS, Node.js, and building scalable systems.</p> saas postgres architecture nestjs