https://www.shkcorp.com/blog Practical notes on product management, distributed systems, and AI—written from real engineering and product experience. en-us kshameed7@gmail.com (Hameed Syed K) kshameed7@gmail.com (Hameed Syed K) Wed, 05 Aug 2026 00:00:00 GMT https://www.shkcorp.com/blog/multi-tenant-saas-architecture https://www.shkcorp.com/blog/multi-tenant-saas-architecture How platforms like Microsoft 365, Slack, and Salesforce serve millions of organizations with one application. Complete guide to isolation, database models, and request flows. Wed, 05 Aug 2026 00:00:00 GMT kshameed7@gmail.com (Hameed Syed K) saassystem-designarchitecturebackenddatabasesecurity