Rafael Cubero

At Microsoft, I provide Tier 3 support for Windows Directory Services, Active Directory, Microsoft Entra ID, and hybrid identity across global enterprise server environments. I diagnose GPO and configuration baseline issues, investigate DNS, DFSR, authentication, PKI, TLS, Windows LAPS, and server health issues, and turn root-cause findings into remediation guidance.

Across McKinsey & Company, Fujitsu, IBM, Bank of America, and HP, I've supported identity, access, applications, enterprise servers, monitoring, backups, and security controls in global and regulated environments. I also deliver technical training, create documentation, and use Power BI, Tableau, Alteryx, Splunk, Linux, Azure, Git, Terraform, and AI tools to improve operational investigations and knowledge sharing.