Enterprise Framework for Standardizing Platform Engineering Across Multi-Cloud Environments: Architectural Harmonization of Amazon Web Services and Microsoft Azure

Abstract

Multi-cloud strategy adoption has introduced significant architectural fragmentation across enterprise platform engineering teams. While organizations leverage multiple cloud providers for resilience and vendor lock-in avoidance, divergent identity models, networking abstractions, governance mechanisms, and deployment constructs create operational complexity and inconsistent security postures. Existing literature emphasizes cloud comparison and workload portability, with limited focus on systematic platform engineering harmonization.

This article presents a governance-driven enterprise multi-cloud platform harmonization framework standardizing platform engineering practices across heterogeneous cloud environments. The framework addresses architectural abstraction alignment, identity federation normalization, network segmentation consistency, and deployment pipeline portability. Implementation across Kubernetes-based platforms in Amazon Web Services and Microsoft Azure incorporated Infrastructure-as-Code automation, identity equivalence mapping, and policy-driven governance controls.

The framework introduces the Deployment Consistency Index, Identity Alignment Score, and Governance Conformance Ratio to quantify standardization outcomes. Empirical evaluation demonstrates reduced configuration variance, improved deployment reproducibility, minimized cloud-specific policy exceptions, and enhanced governance traceability. This work contributes a reusable architectural blueprint for multi-cloud platform standardization with empirical evidence supporting governance-centered harmonization strategies.