• Define and evolve enterprise infrastructure reference architectures and patterns for Azure Cloud, hybrid, and on-premises environments. • Lead end-to-end design for network, compute, storage, identity, and security controls aligned to regulatory and risk requirements. • Partner with product, security, compliance, and operations teams to translate objectives into architecture decisions and implementation guidance. • Produce high-quality architecture artifacts, diagrams, and blueprints; review solutions for adherence to standards and non-functional requirements. • Evaluate emerging infrastructure technologies; run proofs of concept and document recommendations with measurable outcomes. • Establish and govern standards for Infrastructure as Code (IaC) and configuration management using tools such as Terraform, Ansible, Puppet, or Chef. • Drive reliability and resilience through capacity planning, performance modeling, and disaster recovery architectures.