* Administer and maintain SharePoint Online and On-Prem (if applicable): site architecture, permissions, tenant settings, search configuration, content migration, versioning, and lifecycle management.* Implement and enforce governance: site provisioning, security groups, permission models, retention policies, compliance, and auditing.* Monitor performance, capacity, availability and cost of SharePoint and related services; implement best practices and optimizations.* Support and troubleshoot SharePoint issues, provide user support, and create documentation and training materials for users and administrators.* Provide architectural guidance Power Platform solutions: Power Apps (canvas & model-driven), Power Automate flows and ALM Pipelines.* Assist migration of legacy SharePoint to updated Data verse solutions, entity models, and security roles where applicable.* Follow established governance, testing, deployment and release processes for SharePoint/Power Platform/Copilot solutions, inc...