Identity knowledge – Entra ID and hybrid identity, RBAC, managed identities, app registrations, and privileged access/identity management – including how modern token-based authentication differs from traditional Windows authentication, and protocols such as SAML, Kerberos, RADIUS & MFA. Extensive hands-on experience planning, deploying, and maintaining enterprise Windows Server environments (2016 through 2025), including builds, upgrades at scale, performance troubleshooting, patch management, and vulnerability remediation.