Azure Medallion Lakehouse Network Architecture integrates on-premises SAP, FIN700, Dynamics SL, and Softland systems via Self-Hosted Integration Runtime and VPN/Private Link into a secure, segmented Azure data platform. Azure Data Factory orchestrates four extraction pipelines feeding Bronze Delta tables in ADLS Gen2, while Azure Databricks transforms Bronze→Silver (cleaning, homologation, business rules) and Silver→Gold (financial marts) layers within a VNet-isolated Core Data Segment. Unity Catalog provides governance and lineage across all medallion tiers, with Azure Monitor alerting on load failures, while a DMZ-segregated Databricks SQL Warehouse (read-only) and Load Balancer expose curated Gold data to BI consumers. This architecture demonstrates hybrid cloud data governance, network segmentation (10.10.0.0/16 CIDR), and least-privilege access patterns critical for regulated financial data platforms. Fork and customize this diagram on Diagrams.so to adapt CIDR ranges, add additional extractors, or swap Databricks for Synapse Analytics. Consider adding Azure Purview for enhanced metadata management and cost optimization via reserved capacity for long-running Databricks jobs.