Looking for a job

Mario L User

@marioluser

I administer Microsoft infrastructure, Windows Server, Active Directory, networks, and SQL Server across enterprise environments.

Cuba

Message

What I'm looking for

I'm looking for Systems Administration, Infrastructure Support, or IT Operations roles where I can combine traditional Microsoft infrastructure experience with automation and modern Microsoft technologies.

I've supported enterprise technology services at Empresa de Tecnología de la Información y Automática (ATI, UNE), providing infrastructure administration and technical support for Hidroenergía and later EMFRE.

From 2016 to 2024, I administered Windows Server, Active Directory, corporate networks, SQL Server, virtualization platforms, email services, and perimeter security. I also served as an L2/L3 technical escalation point for a network of eight provincial systems administrators.

I'm currently strengthening my Microsoft infrastructure skills through hands-on labs in Windows Server, Active Directory, and PowerShell automation while progressing toward Microsoft Entra ID, Microsoft 365, Intune, and Azure.

Experience

Work history, roles, and key accomplishments

Systems & Infrastructure Administrator

Empresa de Tecnología de la Información y Automática (ATI, UNE)

Jul 2016 - Mar 2024 (7 years 8 months)

Formé parte del equipo de Tecnologías de la Información de la Empresa de Tecnología de la Información y Automática (ATI), organización encargada de liderar los servicios de informática, automática y comunicaciones para empresas pertenecientes a la Unión Eléctrica de Cuba.

Durante este período desarrollé mis funciones prestando servicios de administración de infraestructura y soporte tecnológico