Enterprise Azure Zero Trust Data Platform implements defense-in-depth security across external, DMZ, internal, and data zones using Azure Front Door, API Management, and Entra ID. Traffic flows from React SPA through Azure Static Web App and OKTA SSO, validated by API Management JWT policies, then routed to .NET Core APIs and Function Apps in isolated subnets with Managed Identity authentication. Data ingestion from flat files and APIs feeds Databricks medallion architecture (Bronze/Silver/Gold layers) via Delta Live Tables, with Unity Catalog governance, while Azure SQL and Synapse serve read-only queries cached by Redis. Observability spans Datadog APM, Application Insights, Azure Monitor, Log Analytics, and Sentinel SIEM for complete audit trails and threat detection. Fork this diagram to customize subnets, add private endpoints, or adapt the medallion pipeline for your data governance and compliance requirements.